diff --git a/src/ripple/basics/Log.h b/src/ripple/basics/Log.h
index c4f21ff20..331a8c8cd 100644
--- a/src/ripple/basics/Log.h
+++ b/src/ripple/basics/Log.h
@@ -223,7 +223,7 @@ private:
 // Wraps a Journal::Stream to skip evaluation of
 // expensive argument lists if the stream is not active.
 #ifndef JLOG
-#define JLOG(x) if((x))(x)
+#define JLOG(x) if (!x) { } else x
 #endif
 
 //------------------------------------------------------------------------------