diff --git a/diff.c b/diff.c
index 00b4c86698..2874dfc6fc 100644
--- a/diff.c
+++ b/diff.c
@@ -3282,8 +3282,8 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
 	const char *other;
 	const char *attr_path;
 
-	name  = p->one->path;
-	other = (strcmp(name, p->two->path) ? p->two->path : NULL);
+	name  = one->path;
+	other = (strcmp(name, two->path) ? two->path : NULL);
 	attr_path = name;
 	if (o->prefix_length)
 		strip_prefix(o->prefix_length, &name, &other);