diff --git a/src/webassembly/instance.rs b/src/webassembly/instance.rs
index bf2f00f16..92d1a8c4b 100644
--- a/src/webassembly/instance.rs
+++ b/src/webassembly/instance.rs
@@ -145,7 +145,7 @@ pub struct InstanceOptions {
 }
 
 extern "C" fn mock_fn() -> i32 {
-    println!("CALLING MOCKED FUNC");
+    debug!("CALLING MOCKED FUNC");
     return 0;
 }