diff --git a/error_case/.babelrc b/error_case/.babelrc
new file mode 100644
index 0000000..1c9af58
--- /dev/null
+++ b/error_case/.babelrc
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    ["css-modules-transform", {
+      "processCss": "./src/utils/processCss.js"
+    }]
+  ]
+}
diff --git a/error_case/.dockerignore b/error_case/.dockerignore
new file mode 100644
index 0000000..293a66d
--- /dev/null
+++ b/error_case/.dockerignore
@@ -0,0 +1,40 @@
+# Created by .ignore support plugin (hsz.mobi)
+### Node template
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
diff --git a/error_case/Dockerfile b/error_case/Dockerfile
new file mode 100644
index 0000000..cd5028b
--- /dev/null
+++ b/error_case/Dockerfile
@@ -0,0 +1,13 @@
+FROM node:6.2.2
+
+ENV NODE_ENV=development
+
+WORKDIR /var/www/html
+
+ADD ./package.json /var/www/html/
+
+RUN npm install
+
+ADD . /var/www/html
+
+ENTRYPOINT ./run.sh
diff --git a/error_case/README.md b/error_case/README.md
new file mode 100644
index 0000000..cc89309
--- /dev/null
+++ b/error_case/README.md
@@ -0,0 +1,7 @@
+# Installation
+
+`docker build -t error_case .`
+
+# Test
+
+`docker run error_case`
diff --git a/error_case/package.json b/error_case/package.json
new file mode 100644
index 0000000..1f071df
--- /dev/null
+++ b/error_case/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "application-name",
+  "version": "0.0.1",
+  "dependencies": {
+    "babel-cli": "6.10.1",
+    "babel-register": "6.14.0",
+    "babel-plugin-css-modules-transform": "1.0.0"
+  },
+  "scripts": {
+    "test": "babel src",
+    "test-register": "node src/import.js"
+  }
+}
diff --git a/error_case/run.sh b/error_case/run.sh
new file mode 100755
index 0000000..055fc5e
--- /dev/null
+++ b/error_case/run.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+npm test
+npm run test-register
diff --git a/error_case/src/import.js b/error_case/src/import.js
new file mode 100644
index 0000000..3b6c1e2
--- /dev/null
+++ b/error_case/src/import.js
@@ -0,0 +1,5 @@
+require('babel-register')({
+    ignore: /(src\/utils\/processCss\.js|node_modules|build)/
+});
+
+require('./index');
diff --git a/error_case/src/index.js b/error_case/src/index.js
new file mode 100644
index 0000000..66eb862
--- /dev/null
+++ b/error_case/src/index.js
@@ -0,0 +1 @@
+const styles = require('./style.css');
diff --git a/error_case/src/style.css b/error_case/src/style.css
new file mode 100644
index 0000000..e69de29
diff --git a/error_case/src/utils/processCss.js b/error_case/src/utils/processCss.js
new file mode 100644
index 0000000..ae0a052
--- /dev/null
+++ b/error_case/src/utils/processCss.js
@@ -0,0 +1,3 @@
+module.exports = function processCss() {
+    console.log('test');
+};
diff --git a/src/options_resolvers/processCss.js b/src/options_resolvers/processCss.js
index e5783ad..94526d5 100644
--- a/src/options_resolvers/processCss.js
+++ b/src/options_resolvers/processCss.js
@@ -11,6 +11,7 @@ export default function processCss(value/* ,currentConfig */) {
     if (isModulePath(value)) {
         const requiredModule = requireLocalFileOrNodeModule(value);
 
+        console.dir('required module', requiredModule);
         if (isFunction(requiredModule)) {
             return requiredModule;
         }
diff --git a/src/utils/requireLocalFileOrNodeModule.js b/src/utils/requireLocalFileOrNodeModule.js
index c421272..183e45e 100644
--- a/src/utils/requireLocalFileOrNodeModule.js
+++ b/src/utils/requireLocalFileOrNodeModule.js
@@ -11,9 +11,12 @@ export default function requireLocalFileOrNodeModule(path) {
 
     try {
         // first try to require local file
+        console.log('local file', localFile);
         return require(localFile);
     } catch (e) {
+        console.log('local file error', e);
         // try to require node_module
+        console.log('npm module', path);
         return require(path);
     }
 }