diff --git a/lib/tests/test.js b/lib/tests/test.js
index cbf8af0e1..e680345cd 100644
--- a/lib/tests/test.js
+++ b/lib/tests/test.js
@@ -181,7 +181,7 @@ class Test {
         });
         // If still nothing, assign bogus one, we will redefine it anyway on deploy
         if (!contract) {
-          console.warn(__('Could not recognize the contract name "%s"'));
+          console.warn(__('Could not recognize the contract name "%s"', contractName));
           console.warn(__('If it is an instance of another contract, it will be reassigned on deploy'));
           console.warn(__('Otherwise, you can rename the contract to contain the parent contract in the name eg: Token2 for Token'));
           contract = this.engine.contractsManager.contracts[contractNames[0]];