diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index f231fa2a3dcde15d0d749668416587690cfb7310..b9061ed59bbd9faabc7da7a65ae959a89e4b689f 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -2466,6 +2466,7 @@ parse_field(struct hist_trigger_data *hist_data, struct trace_event_file *file,
 		else if (strcmp(modifier, "usecs") == 0)
 			*flags |= HIST_FIELD_FL_TIMESTAMP_USECS;
 		else {
+			hist_err("Invalid field modifier: ", modifier);
 			field = ERR_PTR(-EINVAL);
 			goto out;
 		}