diff --git a/scripts/rpc.py b/scripts/rpc.py
index 80080cfa1..15bb4cda7 100755
--- a/scripts/rpc.py
+++ b/scripts/rpc.py
@@ -447,7 +447,7 @@ if __name__ == "__main__":
 
     p = subparsers.add_parser('set_trace_flag', help='set trace flag')
     p.add_argument(
-        'flag', help='trace mask we want to set. (for example "debug").')
+        'flag', help='trace mask we want to set. (for example "nvme").')
     p.set_defaults(func=set_trace_flag)
 
     @call_cmd
@@ -456,7 +456,7 @@ if __name__ == "__main__":
 
     p = subparsers.add_parser('clear_trace_flag', help='clear trace flag')
     p.add_argument(
-        'flag', help='trace mask we want to clear. (for example "debug").')
+        'flag', help='trace mask we want to clear. (for example "nvme").')
     p.set_defaults(func=clear_trace_flag)
 
     @call_cmd
diff --git a/test/unit/lib/log/log.c/log_ut.c b/test/unit/lib/log/log.c/log_ut.c
index 8589c9e95..cc66c1bec 100644
--- a/test/unit/lib/log/log.c/log_ut.c
+++ b/test/unit/lib/log/log.c/log_ut.c
@@ -64,7 +64,7 @@ log_test(void)
 #endif
 
 	spdk_log_open();
-	spdk_log_set_trace_flag("debug");
+	spdk_log_set_trace_flag("log");
 	SPDK_WARNLOG("log warning unit test\n");
 	SPDK_DEBUGLOG(SPDK_LOG_LOG, "log trace test\n");
 	SPDK_TRACEDUMP(SPDK_LOG_LOG, "log trace dump test:", "trace dump", 10);