diff --git a/src/bin/pg_upgrade/controldata.c b/src/bin/pg_upgrade/controldata.c
index 142e623c0919851acde43401235b9a3ec6c296f7..6978ae991b2c7d467453671a826f89f8cf7e16b9 100644
--- a/src/bin/pg_upgrade/controldata.c
+++ b/src/bin/pg_upgrade/controldata.c
@@ -402,8 +402,7 @@ get_control_data(ClusterInfo *cluster, bool live_check)
 		}
 	}
 
-	if (output)
-		pclose(output);
+	pclose(output);
 
 	/*
 	 * Restore environment variables