diff --git a/libs/sofia-sip/libsofia-sip-ua/tport/ws.c b/libs/sofia-sip/libsofia-sip-ua/tport/ws.c
index 7f4318e543..6fa69d2161 100644
--- a/libs/sofia-sip/libsofia-sip-ua/tport/ws.c
+++ b/libs/sofia-sip/libsofia-sip-ua/tport/ws.c
@@ -11,6 +11,11 @@
 #define ms_sleep(x) Sleep( x );
 #endif				
 
+#ifdef _MSC_VER
+/* warning C4706: assignment within conditional expression*/
+#pragma warning(disable: 4706)
+#endif
+
 #define WS_BLOCK 1
 #define WS_NOBLOCK 0
 
diff --git a/src/mod/endpoints/mod_verto/ws.c b/src/mod/endpoints/mod_verto/ws.c
index 7f4318e543..6fa69d2161 100644
--- a/src/mod/endpoints/mod_verto/ws.c
+++ b/src/mod/endpoints/mod_verto/ws.c
@@ -11,6 +11,11 @@
 #define ms_sleep(x) Sleep( x );
 #endif				
 
+#ifdef _MSC_VER
+/* warning C4706: assignment within conditional expression*/
+#pragma warning(disable: 4706)
+#endif
+
 #define WS_BLOCK 1
 #define WS_NOBLOCK 0