diff --git a/daemon/libs/pjproject/pjlib/include/pj/compat/string.h b/daemon/libs/pjproject/pjlib/include/pj/compat/string.h
index a2a78b392c97c2f5fe079ed8bf16a6c3e646f4c4..3737230c5ae5835e9817430438ce0f78ec06d139 100644
--- a/daemon/libs/pjproject/pjlib/include/pj/compat/string.h
+++ b/daemon/libs/pjproject/pjlib/include/pj/compat/string.h
@@ -52,9 +52,12 @@
 #   define wcsicmp	_wcsicmp
 #   define wcsnicmp	_wcsnicmp
 #else
+#ifndef stricmp
 #   define stricmp	strcasecmp
+#endif
+#ifndef strnicmp
 #   define strnicmp	strncasecmp
-
+#endif
 #   if defined(PJ_NATIVE_STRING_IS_UNICODE) && PJ_NATIVE_STRING_IS_UNICODE!=0
 #	error "Implement Unicode string functions"
 #   endif