diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 01e15b445cb5..cd60a878752f 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1504,7 +1504,7 @@ static s64 perf_session__process_user_event(struct perf_session *session,
 	struct perf_tool *tool = session->tool;
 	struct perf_sample sample = { .time = 0, };
 	int fd = perf_data__fd(session->data);
-	int err;
+	s64 err;
 
 	if (event->header.type != PERF_RECORD_COMPRESSED ||
 	    tool->compressed == perf_session__process_compressed_event_stub)