diff --git a/diff.c b/diff.c
index 8ae6dbc64e..ec51e7dd18 100644
--- a/diff.c
+++ b/diff.c
@@ -555,6 +555,8 @@ static void remove_tempfile(void)
 static void remove_tempfile_on_signal(int signo)
 {
 	remove_tempfile();
+	signal(SIGINT, SIG_DFL);
+	raise(signo);
 }
 
 /* An external diff command takes:
diff --git a/index.c b/index.c
index ad0eafedc2..f92b960ae4 100644
--- a/index.c
+++ b/index.c
@@ -18,6 +18,8 @@ static void remove_lock_file(void)
 static void remove_lock_file_on_signal(int signo)
 {
 	remove_lock_file();
+	signal(SIGINT, SIG_DFL);
+	raise(signo);
 }
 
 int hold_index_file_for_update(struct cache_file *cf, const char *path)