diff --git a/storages/oldIE-userDataStorage.js b/storages/oldIE-userDataStorage.js
index <HASH>..<HASH> 100644
--- a/storages/oldIE-userDataStorage.js
+++ b/storages/oldIE-userDataStorage.js
@@ -75,7 +75,7 @@ function clearAll() {
 // See https://github.com/marcuswestin/store.js/issues/83
 var forbiddenCharsRegex = new RegExp("[!\"#$%&'()*+,/\\\\:;<=>?@[\\]^`{|}~]", "g")
 function fixKey(key) {
-	return key.replace(/^d/, '___$&').replace(forbiddenCharsRegex, '___')
+	return key.replace(/^\d/, '___$&').replace(forbiddenCharsRegex, '___')
 }
 
 function _makeIEStorageElFunction() {
Fix oldIE-userDataStorage for keys that start with a digit.

#<I> mentions something like this, which made me notice the problem. Thanks @newbeex!