--- libaitio/inc/aitio.h	2011/09/01 15:11:16	1.11.2.11
+++ libaitio/inc/aitio.h	2011/09/05 01:07:20	1.11.2.12
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: aitio.h,v 1.11.2.11 2011/09/01 15:11:16 misho Exp $
+* $Id: aitio.h,v 1.11.2.12 2011/09/05 01:07:20 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -160,7 +160,7 @@ typedef struct {
 							__val->val_type = buffer; AIT_LEN(__val) = _len; \
 							memcpy(__val->val.buffer, (_v), _len); \
 						} } while (0)
-#define AIT_SET_STR(_vl, _v)		do { ait_val_t *__val = (_vl); assert(__val); \
+#define AIT_SET_STR(_vl, _v)		do { ait_val_t *__val = (_vl); assert(__val); assert((_v)); \
 						__val->val.string = (int8_t*) strdup((_v)); \
 						if (__val->val.string) { \
 							__val->val_type = string; \