diff --git a/xtrn/sdk/xsdk.c b/xtrn/sdk/xsdk.c
index 307ce2b2e6f5c21a45539a8be5c9403779902ce9..92783296b429f38f91a2af1ecb809540e991e697 100644
--- a/xtrn/sdk/xsdk.c
+++ b/xtrn/sdk/xsdk.c
@@ -201,8 +201,10 @@
 \****************************************************************************/
 
 #include "xsdk.h"
-#include "conwrap.h"
-#include "threadwrap.h"
+#if defined USE_XPDEV
+	#include "conwrap.h"
+	#include "threadwrap.h"
+#endif
 
 #ifdef _WINSOCKAPI_
 WSADATA WSAData;		// WinSock data