diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index cc5e6be46d8670d7e5f7dadaa05cc276710021e5..b5ca2558c7bb34783c1e94026ece6ba2ad5f61f2 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1015,8 +1015,7 @@ static int __perf_session__process_pipe_events(struct perf_session *self,
 		}
 	}
 
-	if (size == 0 ||
-	    (skip = perf_session__process_event(self, &event, tool, head)) < 0) {
+	if ((skip = perf_session__process_event(self, &event, tool, head)) < 0) {
 		dump_printf("%#" PRIx64 " [%#x]: skipping unknown header type: %d\n",
 			    head, event.header.size, event.header.type);
 		/*