diff --git a/include/ucore/ucore_utils.h b/include/ucore/ucore_utils.h
index 0601622..fa559da 100644
--- a/include/ucore/ucore_utils.h
+++ b/include/ucore/ucore_utils.h
@@ -10,9 +10,9 @@
     } while (0)
 
 #ifdef DEBUG
-    #define TRACEF(fmt, args...)
+    #define TRACEF(fmt, ...)\
     do { \
-        fprintf(stdout, "%s:%d (%s)\t" fmt, __FILE__, __LINE__,  __FUNCTION__,  ##args);\
+        fprintf(stdout, "%s:%d (%s)\t" fmt, __FILE__, __LINE__,  __FUNCTION__,  ##__VA_ARGS__);\
         fflush(stdout);\
     } while(0)
 #else
diff --git a/test/test_logging.c b/test/test_logging.c
index e1ecd86..9511171 100644
--- a/test/test_logging.c
+++ b/test/test_logging.c
@@ -52,7 +52,7 @@ START_TEST (test_logfile_location)
     uc_log_add_destination(dest);
 
     UC_LOGF(UC_LL_DEBUG, 0, "Lorum ipson %d\n", 1);
-    UC_LOGF(UC_LL_DEBUG, 0, "Lorum ipson %d\n", 1);
+    UC_LOGF(UC_LL_DEBUG, 0, "Lorum ipson 2\n");
 
     rc = stat(FILE_NAME, &st);
     fail_if(rc != 0, "stat failed: %s\n", strerror(errno));