diff --git a/src/limonp/Logging.hpp b/src/limonp/Logging.hpp
index 01fd18a..fda9256 100644
--- a/src/limonp/Logging.hpp
+++ b/src/limonp/Logging.hpp
@@ -14,7 +14,7 @@
 #endif // CHECK
 
 #define LOG(level) limonp::Logger(limonp::level, __FILE__, __LINE__).Stream() 
-#define CHECK(exp) {if(!(exp)) LOG(FATAL) << #exp << " is false, abort."; }
+#define CHECK(exp) if(!(exp)) LOG(FATAL) << "exp: ["#exp << "] false. "
 
 namespace limonp {