diff --git a/src/iocsh/asTestRegister.c b/src/iocsh/asTestRegister.c
index cbd6425f9..174c6c15f 100644
--- a/src/iocsh/asTestRegister.c
+++ b/src/iocsh/asTestRegister.c
@@ -114,7 +114,7 @@ static void ascarCallFunc(const iocshArgBuf *args)
 }
 
 static struct iocshVarDef vardefs[] = {
-    {"asCaDebug", iocshArgInt,(void * const )&asCaDebug},
+    {"asCaDebug", iocshArgInt,(void * const )pasCaDebug},
     {0,iocshArgInt,0}
 };