diff --git a/index.js b/index.js
index 538c1db..d648ab2 100644
--- a/index.js
+++ b/index.js
@@ -132,7 +132,7 @@ module.exports = (options = {}) => {
         exclude &&
         ((type.isFunction(exclude) && exclude(filePath)) ||
           (type.isString(exclude) && filePath.indexOf(exclude) !== -1) ||
-          filePath.match(exclude) !== null)
+          (type.isRegExp(exclude) && filePath.match(exclude) !== null))
       ) {
         isExcludeFile = true;
       } else {
diff --git a/lib/type.js b/lib/type.js
index dda695f..429864a 100644
--- a/lib/type.js
+++ b/lib/type.js
@@ -12,7 +12,8 @@ const types = [
   "Number",
   "Function",
   "Symbol",
-  "Object"
+  "Object",
+  "RegExp"
 ];
 
 module.exports = types.reduce((acc, str) => {