diff --git a/extern/recastnavigation/Recast/Include/RecastAssert.h b/extern/recastnavigation/Recast/Include/RecastAssert.h
index b58b8fcd286..45cb01fb595 100644
--- a/extern/recastnavigation/Recast/Include/RecastAssert.h
+++ b/extern/recastnavigation/Recast/Include/RecastAssert.h
@@ -24,7 +24,7 @@
 
 #ifdef NDEBUG
 // From http://cnicholson.net/2009/02/stupid-c-tricks-adventures-in-assert/
-#	define rcAssert(x) do { (void)sizeof(x); } while(__LINE__==-1,false)  
+#	define rcAssert(x) do { (void)sizeof(x); } while((void)(__LINE__ == -1), false)
 #else
 #	include <assert.h> 
 #	define rcAssert assert