diff --git a/ccd_defs.json b/ccd_defs.json
index 07af0707..41b65f9f 100644
--- a/ccd_defs.json
+++ b/ccd_defs.json
@@ -137,6 +137,7 @@
   "GoPro HD2 U": 5.8,
   "Gopro HD3": 5.76,
   "GoPro HERO4 Black": 6.17,
+  "GoPro HERO4 Silver":6,17,
   "Hewlett-Packard hp 635 Digital Camera": 4.54,
   "Hewlett-Packard hp PhotoSmart 43x series": 5.27,
   "Hewlett-Packard HP PhotoSmart 618 (V1.1)": 5.27,