diff --git a/xtrn/sdk/xsdkdefs.h b/xtrn/sdk/xsdkdefs.h
index 1ef77b6e5762a7c9d9df3faddf0d70ca3ee62b0c..6160313094fa3d14f0895eca479b13cd35c434e4 100644
--- a/xtrn/sdk/xsdkdefs.h
+++ b/xtrn/sdk/xsdkdefs.h
@@ -290,7 +290,7 @@ enum {								/* Node Action */
 #define KEY_BUFSIZE 256
 #endif
 
-#ifndef CTRL_A
+#ifndef USE_XPDEV
 enum {
 	 CTRL_AT						// NUL
 	,CTRL_A							// SOH