diff --git a/src/pushprocessor.js b/src/pushprocessor.js
index 7ba4d0a06..2579de5c8 100644
--- a/src/pushprocessor.js
+++ b/src/pushprocessor.js
@@ -232,6 +232,9 @@ function PushProcessor(client) {
     };
 
     const createCachedRegex = function(prefix, glob, suffix) {
+        if (cachedGlobToRegex[glob]) {
+            return cachedGlobToRegex[glob];
+        }
         cachedGlobToRegex[glob] = new RegExp(
             prefix + globToRegexp(glob) + suffix,
             'i', // Case insensitive