diff --git a/pkl-core/src/main/java/org/pkl/core/util/IoUtils.java b/pkl-core/src/main/java/org/pkl/core/util/IoUtils.java
index 44f3fafa..df10423e 100644
--- a/pkl-core/src/main/java/org/pkl/core/util/IoUtils.java
+++ b/pkl-core/src/main/java/org/pkl/core/util/IoUtils.java
@@ -175,6 +175,7 @@ public final class IoUtils {
   }
 
   // not stored to avoid build-time initialization by native-image
+  @SuppressWarnings("SystemGetProperty")
   public static String getLineSeparator() {
     return System.getProperty("line.separator");
   }