diff --git a/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs b/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs
index cbd1a86cf5..1a08c60432 100644
--- a/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs
+++ b/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs
@@ -44,6 +44,8 @@ public bool PreconditionVerification(QsCompilation compilation)
                 .ToHashSet();
             var requiredBuiltIns = new HashSet<QsQualifiedName>()
             {
+                BuiltIn.NoOp.FullName,
+                
                 BuiltIn.ApplyIfZero.FullName,
                 BuiltIn.ApplyIfZeroA.FullName,
                 BuiltIn.ApplyIfZeroC.FullName,