diff --git a/lib/winston/logger.js b/lib/winston/logger.js
index 265d8e131..7e9cd452b 100644
--- a/lib/winston/logger.js
+++ b/lib/winston/logger.js
@@ -141,7 +141,7 @@ class Logger extends Transform {
       );
     }
 
-    if (!Object.keys(this.levels).includes(this.level)){
+    if (!Object.keys(this.levels).includes(this.level)) {
       const message = [
         '[winston] Log level <${this.level}> is not defined in levels definition.',
         'Please double check the setup of your transports and/or custom log levels.',