diff --git a/nomenclature/error.py b/nomenclature/error.py
index b240277e..958f3c34 100644
--- a/nomenclature/error.py
+++ b/nomenclature/error.py
@@ -42,7 +42,7 @@
     ),
     "ConstituentsNotNativeError": (
         "constituents_not_native",
-        "Constituent region(s)\n{regions}\nin {file} not found in RegionCodeList",
+        "Constituent region(s)\n{regions}\nin {file} not found in native region(s)",
     ),
 }