diff --git a/src/Util/util.cpp b/src/Util/util.cpp
index 1da99cc3..e21d1aa1 100644
--- a/src/Util/util.cpp
+++ b/src/Util/util.cpp
@@ -669,7 +669,14 @@ void Assert_Throw(int failed, const char *exp, const char *func, const char *fil
         if(str && *str){
             printer << ", " << str;
         }
-        printer << "), function " << func << ", file " << file << ", line " << line << ".";
+#if defined(ZLMediaKit_PARENT_DIR_LENGTH) && defined(ZLMediaKit_PARENT_DIR)
+        // Assertion failed: (false), at ZLMediaKit/ext-codec/H264Rtmp.cpp#42@foobar
+        int offset = strncmp(file, ZLMediaKit_PARENT_DIR, ZLMediaKit_PARENT_DIR_LENGTH) == 0 ? ZLMediaKit_PARENT_DIR_LENGTH + 1: 0;
+        printer << "), at " << (file+ offset) << "#" << line << "@" << func;
+#else
+        printer << "), at " << file << "#" << line << "@" << func;
+#endif
+
         throw toolkit::AssertFailedException(printer);
     }
 }