diff --git a/src/constants/CODATA2018/test/CODATA2018.test.cpp b/src/constants/CODATA2018/test/CODATA2018.test.cpp
index 8279e0f..495269e 100644
--- a/src/constants/CODATA2018/test/CODATA2018.test.cpp
+++ b/src/constants/CODATA2018/test/CODATA2018.test.cpp
@@ -83,5 +83,5 @@ SCENARIO("test all the constants"){
     )
   );
 
-  // checkMap( aliasMap );
+  checkMap( aliasMap );
 }