diff --git a/lib/layouts.js b/lib/layouts.js
index 270f336..94f273d 100644
--- a/lib/layouts.js
+++ b/lib/layouts.js
@@ -295,9 +295,7 @@ function patternLayout (pattern, tokens) {
       } else {
         // Create a raw replacement string based on the conversion
         // character and specifier
-        var replacement = 
-          replaceToken(conversionCharacter, loggingEvent, specifier) || 
-          matchedString;
+        var replacement = replaceToken(conversionCharacter, loggingEvent, specifier);
 
         // Format the replacement according to any padding or
         // truncation specified