diff --git a/core/src/avm2/activation.rs b/core/src/avm2/activation.rs
index ae701d970..938839fd4 100644
--- a/core/src/avm2/activation.rs
+++ b/core/src/avm2/activation.rs
@@ -1969,6 +1969,7 @@ impl<'a, 'gc> Activation<'a, 'gc> {
 
         let coerced = match value {
             Value::Undefined | Value::Null => Value::Null,
+            Value::String(_) => value,
             _ => value.coerce_to_string(self)?.into(),
         };