diff --git a/pkl-core/src/main/java/org/pkl/core/ast/builder/AstBuilder.java b/pkl-core/src/main/java/org/pkl/core/ast/builder/AstBuilder.java
index e6ee30a8f..d7df51d14 100644
--- a/pkl-core/src/main/java/org/pkl/core/ast/builder/AstBuilder.java
+++ b/pkl-core/src/main/java/org/pkl/core/ast/builder/AstBuilder.java
@@ -1476,8 +1476,6 @@ public class AstBuilder extends AbstractAstBuilder<Object> {
     var scope = (ModuleScope) symbolTable.getCurrentScope();
     scope.setModifiers(modifiers);
 
-    checkAbstractMembersAllowed(modifiers, mod.getProperties(), mod.getMethods());
-
     // visit imports first so that we already have the object member name available
     var imports = mod.getImports();
     var importMembers = new ObjectMember[imports.size()];
@@ -1722,7 +1720,6 @@ public class AstBuilder extends AbstractAstBuilder<Object> {
           List<ClassProperty> properties = bodyNode != null ? bodyNode.getProperties() : List.of();
           List<ClassMethod> methods = bodyNode != null ? bodyNode.getMethods() : List.of();
           registerClassScopeNames(scope, properties, methods);
-          checkAbstractMembersAllowed(modifiers, properties, methods);
 
           var supertypeCtx = clazz.getSuperClass();
 
@@ -1813,30 +1810,6 @@ public class AstBuilder extends AbstractAstBuilder<Object> {
     };
   }
 
-  private void checkAbstractMembersAllowed(
-      int enclosingModifiers, List<ClassProperty> properties, List<ClassMethod> methods) {
-    if (VmModifier.isAbstract(enclosingModifiers)) {
-      return;
-    }
-    for (var property : properties) {
-      checkMemberNotAbstract(property.getModifiers());
-    }
-    for (var method : methods) {
-      checkMemberNotAbstract(method.getModifiers());
-    }
-  }
-
-  private void checkMemberNotAbstract(List<Modifier> modifiers) {
-    for (var modifier : modifiers) {
-      if (modifier.getValue() == ModifierValue.ABSTRACT) {
-        throw exceptionBuilder()
-            .evalError("abstractMemberInNonAbstractClass")
-            .withSourceSection(createSourceSection(modifier.span()))
-            .build();
-      }
-    }
-  }
-
   private UnresolvedPropertyNode[] doVisitClassProperties(
       List<ClassProperty> propertyContexts, Set<String> propertyNames) {
     var propertyNodes = new UnresolvedPropertyNode[propertyContexts.size()];
diff --git a/pkl-core/src/main/resources/org/pkl/core/errorMessages.properties b/pkl-core/src/main/resources/org/pkl/core/errorMessages.properties
index fb96eabb3..e3b93b6b7 100644
--- a/pkl-core/src/main/resources/org/pkl/core/errorMessages.properties
+++ b/pkl-core/src/main/resources/org/pkl/core/errorMessages.properties
@@ -286,11 +286,6 @@ External members cannot have a body.
 abstractMemberCannotHaveBody=\
 Abstract members cannot have a body.
 
-abstractMemberInNonAbstractClass=\
-Cannot define an abstract member in a non-abstract class.\n\
-\n\
-A member can only be `abstract` if its enclosing class is also `abstract`.
-
 methodNotDefined1=\
 Method `{0}` is not defined for argument type `{1}`.
 
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMemberInNonAbstractClass.pkl b/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMemberInNonAbstractClass.pkl
deleted file mode 100644
index 7417fbd26..000000000
--- a/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMemberInNonAbstractClass.pkl
+++ /dev/null
@@ -1,5 +0,0 @@
-class Foo {
-  abstract bar: Int
-}
-
-res = new Foo { bar = 5 }
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMemberInNonAbstractModule.pkl b/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMemberInNonAbstractModule.pkl
deleted file mode 100644
index e9dff5a3d..000000000
--- a/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMemberInNonAbstractModule.pkl
+++ /dev/null
@@ -1 +0,0 @@
-abstract foo: Int
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMethodInNonAbstractClass.pkl b/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMethodInNonAbstractClass.pkl
deleted file mode 100644
index 5f2a1213b..000000000
--- a/pkl-core/src/test/files/LanguageSnippetTests/input/errors/abstractMethodInNonAbstractClass.pkl
+++ /dev/null
@@ -1,5 +0,0 @@
-class Foo {
-  abstract function bar(): Int
-}
-
-res = new Foo {}
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMemberInNonAbstractClass.err b/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMemberInNonAbstractClass.err
deleted file mode 100644
index 836ca8f00..000000000
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMemberInNonAbstractClass.err
+++ /dev/null
@@ -1,8 +0,0 @@
-–– Pkl Error ––
-Cannot define an abstract member in a non-abstract class.
-
-x | abstract bar: Int
-    ^^^^^^^^
-at abstractMemberInNonAbstractClass#Foo (file:///$snippetsDir/input/errors/abstractMemberInNonAbstractClass.pkl)
-
-A member can only be `abstract` if its enclosing class is also `abstract`.
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMemberInNonAbstractModule.err b/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMemberInNonAbstractModule.err
deleted file mode 100644
index d31c181d0..000000000
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMemberInNonAbstractModule.err
+++ /dev/null
@@ -1,8 +0,0 @@
-–– Pkl Error ––
-Cannot define an abstract member in a non-abstract class.
-
-x | abstract foo: Int
-    ^^^^^^^^
-at abstractMemberInNonAbstractModule (file:///$snippetsDir/input/errors/abstractMemberInNonAbstractModule.pkl)
-
-A member can only be `abstract` if its enclosing class is also `abstract`.
diff --git a/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMethodInNonAbstractClass.err b/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMethodInNonAbstractClass.err
deleted file mode 100644
index a090b927a..000000000
--- a/pkl-core/src/test/files/LanguageSnippetTests/output/errors/abstractMethodInNonAbstractClass.err
+++ /dev/null
@@ -1,8 +0,0 @@
-–– Pkl Error ––
-Cannot define an abstract member in a non-abstract class.
-
-x | abstract function bar(): Int
-    ^^^^^^^^
-at abstractMethodInNonAbstractClass#Foo (file:///$snippetsDir/input/errors/abstractMethodInNonAbstractClass.pkl)
-
-A member can only be `abstract` if its enclosing class is also `abstract`.
diff --git a/pkl-doc/src/test/files/DocGeneratorTest/input/com.package1/moduleMethodModifiers.pkl b/pkl-doc/src/test/files/DocGeneratorTest/input/com.package1/moduleMethodModifiers.pkl
index bd48b43c7..6138dbb76 100644
--- a/pkl-doc/src/test/files/DocGeneratorTest/input/com.package1/moduleMethodModifiers.pkl
+++ b/pkl-doc/src/test/files/DocGeneratorTest/input/com.package1/moduleMethodModifiers.pkl
@@ -1,5 +1,5 @@
 /// Module methods with different modifiers.
-abstract module com.package1.moduleMethodModifiers
+module com.package1.moduleMethodModifiers
 
 /// Method with `abstract` modifier.
 abstract function method1(arg: String): Boolean
diff --git a/pkl-doc/src/test/files/DocGeneratorTest/output/run-1/com.package1/1.2.3/moduleMethodModifiers/index.html b/pkl-doc/src/test/files/DocGeneratorTest/output/run-1/com.package1/1.2.3/moduleMethodModifiers/index.html
index 06c96ad88..573620801 100644
--- a/pkl-doc/src/test/files/DocGeneratorTest/output/run-1/com.package1/1.2.3/moduleMethodModifiers/index.html
+++ b/pkl-doc/src/test/files/DocGeneratorTest/output/run-1/com.package1/1.2.3/moduleMethodModifiers/index.html
@@ -32,7 +32,7 @@
       </ul>
       <div id="_overview" class="anchor"> </div>
       <div id="_declaration" class="member">
-        <div class="member-signature">abstract module <span class="name-decl">com.package1.moduleMethodModifiers</span></div>
+        <div class="member-signature">module <span class="name-decl">com.package1.moduleMethodModifiers</span></div>
         <div class="doc-comment"><p>Module methods with different modifiers.</p></div>
         <dl class="member-info">
           <dt class="">Module URI:</dt>
diff --git a/pkl-doc/src/test/files/DocGeneratorTest/output/run-2/com.package1/1.2.3/moduleMethodModifiers/index.html b/pkl-doc/src/test/files/DocGeneratorTest/output/run-2/com.package1/1.2.3/moduleMethodModifiers/index.html
index 06c96ad88..573620801 100644
--- a/pkl-doc/src/test/files/DocGeneratorTest/output/run-2/com.package1/1.2.3/moduleMethodModifiers/index.html
+++ b/pkl-doc/src/test/files/DocGeneratorTest/output/run-2/com.package1/1.2.3/moduleMethodModifiers/index.html
@@ -32,7 +32,7 @@
       </ul>
       <div id="_overview" class="anchor"> </div>
       <div id="_declaration" class="member">
-        <div class="member-signature">abstract module <span class="name-decl">com.package1.moduleMethodModifiers</span></div>
+        <div class="member-signature">module <span class="name-decl">com.package1.moduleMethodModifiers</span></div>
         <div class="doc-comment"><p>Module methods with different modifiers.</p></div>
         <dl class="member-info">
           <dt class="">Module URI:</dt>