diff --git a/src/cc65/main.c b/src/cc65/main.c
index 0b156fb74..5d1fd7487 100644
--- a/src/cc65/main.c
+++ b/src/cc65/main.c
@@ -291,7 +291,7 @@ static void SetSys (const char* Sys)
             break;
 
         default:
-            AbEnd ("Unknown target system type %d", Target);
+            AbEnd ("Unknown target system '%s'", Sys);
     }
 
     /* Initialize the translation tables for the target system */