diff --git a/src/bin/pg_upgrade/.gitignore b/src/bin/pg_upgrade/.gitignore
index 6fb644de7a9..9edea5c98f0 100644
--- a/src/bin/pg_upgrade/.gitignore
+++ b/src/bin/pg_upgrade/.gitignore
@@ -1,5 +1,6 @@
 /pg_upgrade
 # Generated by test suite
+/pg_upgrade_internal.log
 /analyze_new_cluster.sh
 /delete_old_cluster.sh
 /analyze_new_cluster.bat