diff --git a/src/lib/create/from-string.js b/src/lib/create/from-string.js
index 2c1af2f3a4..8a4e44c2b9 100644
--- a/src/lib/create/from-string.js
+++ b/src/lib/create/from-string.js
@@ -177,7 +177,7 @@ export function configFromString(config) {
 
     configFromISO(config);
     if (config._isValid === true) {
-        return
+        return;
     } else {
         delete config._isValid;
         getParsingFlags(config).iso = false;
@@ -185,7 +185,7 @@ export function configFromString(config) {
     
     configFromRFC2822(config);
     if (config._isValid === true) {
-        return
+        return;
     } else {
         getParsingFlags(config).rfc2822 = false;
         delete config._isValid;