diff --git a/pkg/analyzer/lib/src/generated/error_verifier.dart b/pkg/analyzer/lib/src/generated/error_verifier.dart
index 6792bc6..a5e2927 100644
--- a/pkg/analyzer/lib/src/generated/error_verifier.dart
+++ b/pkg/analyzer/lib/src/generated/error_verifier.dart
@@ -365,12 +365,14 @@
   @override
   void visitAssertInitializer(AssertInitializer node) {
     _checkForNonBoolExpression(node);
+    _checkForNullableDereference(node.condition);
     super.visitAssertInitializer(node);
   }
 
   @override
   void visitAssertStatement(AssertStatement node) {
     _checkForNonBoolExpression(node);
+    _checkForNullableDereference(node.condition);
     super.visitAssertStatement(node);
   }
 
diff --git a/tests/language_2/nnbd/static_errors/unchecked_use_of_nullable_test.dart b/tests/language_2/nnbd/static_errors/unchecked_use_of_nullable_test.dart
index e88f9ed..a991f55 100644
--- a/tests/language_2/nnbd/static_errors/unchecked_use_of_nullable_test.dart
+++ b/tests/language_2/nnbd/static_errors/unchecked_use_of_nullable_test.dart
@@ -53,9 +53,10 @@
   x?.round(); //# 35: ok
   for(i in list) {}; //# 36: compile-time error
   await for(i in stream) {}; //# 37: compile-time error
+  assert(cond); //# 38: compile-time error
 }
 
 generator() sync* {
   Iterable? iter;
-  yield* iter; //# 38: compile-time error
+  yield* iter; //# 39: compile-time error
 }