diff --git a/ws_diag_control.h b/ws_diag_control.h
index bad6f0f573..7a84265c87 100644
--- a/ws_diag_control.h
+++ b/ws_diag_control.h
@@ -185,7 +185,7 @@ extern "C" {
     #define DIAG_OFF_BYACC \
       DIAG_OFF(shadow)
     #define DIAG_ON_BYACC \
-      DIAG_ON(SHADOW)
+      DIAG_ON(shadow)
   #else
     #define DIAG_OFF_BYACC
     #define DIAG_ON_BYACC