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-rw-r--r--node_modules/moment/locale/el.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/node_modules/moment/locale/el.js b/node_modules/moment/locale/el.js
index bf3f4c95f..af1ab2cb5 100644
--- a/node_modules/moment/locale/el.js
+++ b/node_modules/moment/locale/el.js
@@ -20,7 +20,7 @@ var el = moment.defineLocale('el', {
months : function (momentToFormat, format) {
if (!momentToFormat) {
return this._monthsNominativeEl;
- } else if (/D/.test(format.substring(0, format.indexOf('MMMM')))) { // if there is a day number before 'MMMM'
+ } else if (typeof format === 'string' && /D/.test(format.substring(0, format.indexOf('MMMM')))) { // if there is a day number before 'MMMM'
return this._monthsGenitiveEl[momentToFormat.month()];
} else {
return this._monthsNominativeEl[momentToFormat.month()];