diff --git a/extension.json b/extension.json
index cf38562..6e10b78 100644
--- a/extension.json
+++ b/extension.json
@@ -214,7 +214,8 @@
 		"WatchAnalyticsWatchQualityColors": {
 			"50" : "plaid",
 			"5" : "excellent",
-			"1.5" : "okay"
+			"1.5" : "okay",
+			"_merge_strategy": "array_plus"
 		},
 		"WatchAnalyticsReviewStatusColors": {
 			"5" : "excellent",