diff --git a/bytecode/src/bytecode.rs b/bytecode/src/bytecode.rs
index 871b4efd0..ecb834272 100644
--- a/bytecode/src/bytecode.rs
+++ b/bytecode/src/bytecode.rs
@@ -53,7 +53,13 @@ bitflags! {
         const HAS_DEFAULTS = 0x01;
         const HAS_KW_ONLY_DEFAULTS = 0x02;
         const HAS_ANNOTATIONS = 0x04;
-        const NO_NEW_LOCALS = 0x08;
+        const NEW_LOCALS = 0x08;
+    }
+}
+
+impl Default for FunctionOpArg {
+    fn default() -> Self {
+        Self::NEW_LOCALS
     }
 }
 
diff --git a/compiler/src/compile.rs b/compiler/src/compile.rs
index 838afe31c..3cdcd1876 100644
--- a/compiler/src/compile.rs
+++ b/compiler/src/compile.rs
@@ -672,7 +672,7 @@ impl<O: OutputStream> Compiler<O> {
         ));
         self.enter_scope();
 
-        let mut flags = bytecode::FunctionOpArg::empty();
+        let mut flags = bytecode::FunctionOpArg::default();
         if have_defaults {
             flags |= bytecode::FunctionOpArg::HAS_DEFAULTS;
         }
@@ -992,7 +992,7 @@ impl<O: OutputStream> Compiler<O> {
 
         // Turn code object into function object:
         self.emit(Instruction::MakeFunction {
-            flags: bytecode::FunctionOpArg::NO_NEW_LOCALS,
+            flags: bytecode::FunctionOpArg::default() & !bytecode::FunctionOpArg::NEW_LOCALS,
         });
 
         self.emit(Instruction::LoadConst {
@@ -1929,7 +1929,7 @@ impl<O: OutputStream> Compiler<O> {
 
         // Turn code object into function object:
         self.emit(Instruction::MakeFunction {
-            flags: bytecode::FunctionOpArg::empty(),
+            flags: bytecode::FunctionOpArg::default(),
         });
 
         // Evaluate iterated item:
diff --git a/vm/src/frame.rs b/vm/src/frame.rs
index bb02da5ad..3e785fcc7 100644
--- a/vm/src/frame.rs
+++ b/vm/src/frame.rs
@@ -1058,7 +1058,7 @@ impl Frame {
             scope,
             defaults,
             kw_only_defaults,
-            !flags.contains(bytecode::FunctionOpArg::NO_NEW_LOCALS),
+            flags.contains(bytecode::FunctionOpArg::NEW_LOCALS),
         );
 
         let name = qualified_name.as_str().split('.').next_back().unwrap();