diff --git a/cwCommonImpl.h b/cwCommonImpl.h
index 438e948..7b59c59 100644
--- a/cwCommonImpl.h
+++ b/cwCommonImpl.h
@@ -138,7 +138,7 @@ namespace cw
 {
 
   
-#define cwAssert(cond) while(1){ if(!(cond)){ cwLogFatal(kAssertFailRC,"Assert failed on condition:%s",#cond ); } break; }
+#define cwAssert(C) while(1){ if(!(C)){ cwLogFatal(kAssertFailRC,"Assert failed on condition:%s",#C ); } break; }