From ae802c2c6e001492f8f639e4c24546f0e21d86c7 Mon Sep 17 00:00:00 2001
From: Ebrahim Byagowi <ebrahim@gnu.org>
Date: Mon, 29 Oct 2018 13:42:14 +0330
Subject: [PATCH] [test-ot-color] Minor

---
 src/test-ot-color.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/test-ot-color.cc b/src/test-ot-color.cc
index 5312554a5..2cb9b03b2 100644
--- a/src/test-ot-color.cc
+++ b/src/test-ot-color.cc
@@ -74,7 +74,8 @@ png_dump (hb_face_t *face, unsigned int face_index)
 	strikes_count++;
 	blob_length = new_blob_length;
       }
-      strikes[strikes_count - 1] = ppem;
+      if (strikes_count != 0)
+	strikes[strikes_count - 1] = ppem;
       hb_blob_destroy (blob);
     }
     /* can't report the biggest strike correctly, and, we can't do anything about it */