diff --git a/README.md b/README.md
index 8f9f649b..f85d148d 100644
--- a/README.md
+++ b/README.md
@@ -99,7 +99,7 @@ middleware. Takes the following options:
 
 * `projectRoots` array (required): Is the roots where your JavaScript
   file will exist
-* `blacklistRE` regexp: Is a patter to ignore certain paths from the
+* `blacklistRE` regexp: Is a pattern to ignore certain paths from the
   packager
 * `polyfillModuleName` array: Paths to polyfills you want to be
   included at the start of the bundle