diff --git a/src/bin/pg_upgrade/.gitignore b/src/bin/pg_upgrade/.gitignore
index 05200a09f14..a66166ea0fa 100644
--- a/src/bin/pg_upgrade/.gitignore
+++ b/src/bin/pg_upgrade/.gitignore
@@ -1,4 +1,8 @@
 /pg_upgrade
+# Generated by manual invocation
+/delete_old_cluster.sh
+/delete_old_cluster.bat
+/reindex_hash.sql
 # Generated by test suite
 /log/
 /tmp_check/
diff --git a/src/bin/pg_upgrade/Makefile b/src/bin/pg_upgrade/Makefile
index 80ebe9bd174..587793e815b 100644
--- a/src/bin/pg_upgrade/Makefile
+++ b/src/bin/pg_upgrade/Makefile
@@ -48,7 +48,8 @@ uninstall:
 
 clean distclean maintainer-clean:
 	rm -f pg_upgrade$(X) $(OBJS)
-	rm -rf log/ tmp_check/
+	rm -rf delete_old_cluster.sh log/ tmp_check/ \
+	       reindex_hash.sql
 
 check:
 	$(prove_check)