diff --git a/Sources/Convenience/NSFetchedResultsController+Convenience.swift b/Sources/Convenience/NSFetchedResultsController+Convenience.swift
index 41882df..a5da48d 100644
--- a/Sources/Convenience/NSFetchedResultsController+Convenience.swift
+++ b/Sources/Convenience/NSFetchedResultsController+Convenience.swift
@@ -208,6 +208,11 @@ public extension NSFetchedResultsController {
             applyFetchClauses: { fetchRequest in
                 
                 fetchClauses.forEach { $0.applyToFetchRequest(fetchRequest) }
+                
+                CoreStore.assert(
+                    fetchRequest.sortDescriptors?.isEmpty == false,
+                    "An \(cs_typeName(NSFetchedResultsController)) requires a sort information. Specify from a \(cs_typeName(OrderBy)) clause or any custom \(cs_typeName(FetchClause)) that provides a sort descriptor."
+                )
             }
         )
     }
diff --git a/Sources/Internal/CoreStoreFetchedResultsController.swift b/Sources/Internal/CoreStoreFetchedResultsController.swift
index d8c8b40..5bf7776 100644
--- a/Sources/Internal/CoreStoreFetchedResultsController.swift
+++ b/Sources/Internal/CoreStoreFetchedResultsController.swift
@@ -56,10 +56,6 @@ internal final class CoreStoreFetchedResultsController: NSFetchedResultsControll
         )
         applyFetchClauses(fetchRequest: fetchRequest)
         
-        CoreStore.assert(
-            fetchRequest.sortDescriptors?.isEmpty == false,
-            "An \(cs_typeName(NSFetchedResultsController)) requires a sort information. Specify from a \(cs_typeName(OrderBy)) clause or any custom \(cs_typeName(FetchClause)) that provides a sort descriptor."
-        )
         if let from = from {
             
             self.reapplyAffectedStores = { fetchRequest, context in
diff --git a/Sources/ObjectiveC/NSFetchedResultsController+ObjectiveC.swift b/Sources/ObjectiveC/NSFetchedResultsController+ObjectiveC.swift
index d02fab5..bed5fbd 100644
--- a/Sources/ObjectiveC/NSFetchedResultsController+ObjectiveC.swift
+++ b/Sources/ObjectiveC/NSFetchedResultsController+ObjectiveC.swift
@@ -52,6 +52,11 @@ public extension NSFetchedResultsController {
             applyFetchClauses: { fetchRequest in
                 
                 fetchClauses.forEach { $0.applyToFetchRequest(fetchRequest) }
+
+                CoreStore.assert(
+                    fetchRequest.sortDescriptors?.isEmpty == false,
+                    "An \(cs_typeName(NSFetchedResultsController)) requires a sort information. Specify from a \(cs_typeName(CSOrderBy)) clause or any custom \(cs_typeName(CSFetchClause)) that provides a sort descriptor."
+                )
             }
         )
     }
diff --git a/Sources/Observing/DataStack+Observing.swift b/Sources/Observing/DataStack+Observing.swift
index 9795dbe..0c2c54d 100644
--- a/Sources/Observing/DataStack+Observing.swift
+++ b/Sources/Observing/DataStack+Observing.swift
@@ -85,6 +85,11 @@ public extension DataStack {
             applyFetchClauses: { fetchRequest in
                 
                 fetchClauses.forEach { $0.applyToFetchRequest(fetchRequest) }
+                
+                CoreStore.assert(
+                    fetchRequest.sortDescriptors?.isEmpty == false,
+                    "An \(cs_typeName(NSFetchedResultsController)) requires a sort information. Specify from a \(cs_typeName(OrderBy)) clause or any custom \(cs_typeName(FetchClause)) that provides a sort descriptor."
+                )
             }
         )
     }
@@ -121,6 +126,11 @@ public extension DataStack {
             applyFetchClauses: { fetchRequest in
                 
                 fetchClauses.forEach { $0.applyToFetchRequest(fetchRequest) }
+                
+                CoreStore.assert(
+                    fetchRequest.sortDescriptors?.isEmpty == false,
+                    "An \(cs_typeName(NSFetchedResultsController)) requires a sort information. Specify from a \(cs_typeName(OrderBy)) clause or any custom \(cs_typeName(FetchClause)) that provides a sort descriptor."
+                )
             },
             createAsynchronously: createAsynchronously
         )
@@ -163,6 +173,11 @@ public extension DataStack {
             applyFetchClauses: { fetchRequest in
                 
                 fetchClauses.forEach { $0.applyToFetchRequest(fetchRequest) }
+                
+                CoreStore.assert(
+                    fetchRequest.sortDescriptors?.isEmpty == false,
+                    "An \(cs_typeName(NSFetchedResultsController)) requires a sort information. Specify from a \(cs_typeName(OrderBy)) clause or any custom \(cs_typeName(FetchClause)) that provides a sort descriptor."
+                )
             }
         )
     }
@@ -202,6 +217,11 @@ public extension DataStack {
             applyFetchClauses: { fetchRequest in
                 
                 fetchClauses.forEach { $0.applyToFetchRequest(fetchRequest) }
+                
+                CoreStore.assert(
+                    fetchRequest.sortDescriptors?.isEmpty == false,
+                    "An \(cs_typeName(NSFetchedResultsController)) requires a sort information. Specify from a \(cs_typeName(OrderBy)) clause or any custom \(cs_typeName(FetchClause)) that provides a sort descriptor."
+                )
             },
             createAsynchronously: createAsynchronously
         )