diff --git a/README.md b/README.md
index b535461..1f1be6b 100644
--- a/README.md
+++ b/README.md
@@ -97,6 +97,7 @@ Options:
                            First extension will always be preferred to homonyms
                            with another allowed extension.
                                                        [array] [default: ["js"]]
+  --outputFile, -o         Output file            [string] [default: "index.js"]                                                      [array] [default: ["js"]]
 
 Examples:
   create-index ./src ./src/utilities      Creates or updates an existing
diff --git a/src/bin/create-index.js b/src/bin/create-index.js
index 4919cf3..ba5a102 100644
--- a/src/bin/create-index.js
+++ b/src/bin/create-index.js
@@ -53,6 +53,14 @@ const argv = yargs
       type: 'array'
     }
   })
+  .options({
+    outputFile: {
+      alias: 'o',
+      default: 'index.js',
+      description: 'Output file',
+      type: 'string'
+    }
+  })
   .example(
     'create-index ./src ./src/utilities',
     'Creates or updates an existing create-index index file in the target (./src, ./src/utilities) directories.'
@@ -73,5 +81,6 @@ writeIndexCli(argv._, {
   ignoreDirectories: argv.ignoreDirectories,
   ignoreUnsafe: argv.ignoreUnsafe,
   recursive: argv.recursive,
+  outputFile: argv.outputFile,
   updateIndex: argv.update
 });
diff --git a/src/utilities/findIndexFiles.js b/src/utilities/findIndexFiles.js
index 7f9af10..a27b855 100644
--- a/src/utilities/findIndexFiles.js
+++ b/src/utilities/findIndexFiles.js
@@ -13,7 +13,8 @@ export default (directoryPath, options = {}) => {
 
   targetDirectories = _.filter(targetDirectories, (targetDirectoryPath) => {
     return validateTargetDirectory(path.dirname(targetDirectoryPath), {
-      silent: options.silent
+      silent: options.silent,
+      outputFile: options.fileName
     });
   });
 
diff --git a/src/utilities/hasIndex.js b/src/utilities/hasIndex.js
index 1146e4c..e8dc4f5 100644
--- a/src/utilities/hasIndex.js
+++ b/src/utilities/hasIndex.js
@@ -1,8 +1,8 @@
 import fs from 'fs';
 import path from 'path';
 
-export default (directoryPath) => {
-  const indexPath = path.resolve(directoryPath, 'index.js');
+export default (directoryPath, options = {}) => {
+  const indexPath = path.resolve(directoryPath, options.outputFile || 'index.js');
 
   try {
     fs.statSync(indexPath);
diff --git a/src/utilities/readDirectory.js b/src/utilities/readDirectory.js
index 1fa333d..ddf5f41 100644
--- a/src/utilities/readDirectory.js
+++ b/src/utilities/readDirectory.js
@@ -72,7 +72,7 @@ const removeIgnoredFiles = (files, ignorePatterns = []) => {
 };
 
 export default (directoryPath, options = {}) => {
-  if (!validateTargetDirectory(directoryPath, {silent: options.silent})) {
+  if (!validateTargetDirectory(directoryPath, options)) {
     return false;
   }
 
@@ -102,7 +102,7 @@ export default (directoryPath, options = {}) => {
       return false;
     }
 
-    if (_.startsWith(fileName, 'index.js')) {
+    if (_.startsWith(fileName, options.outputFile || 'index.js')) {
       return false;
     }
 
@@ -112,7 +112,7 @@ export default (directoryPath, options = {}) => {
       return false;
     }
 
-    if (isDirectory && (!hasIndex(absolutePath) || ignoreDirectories)) {
+    if (isDirectory && (!hasIndex(absolutePath, options) || ignoreDirectories)) {
       return false;
     }
 
diff --git a/src/utilities/readIndexConfig.js b/src/utilities/readIndexConfig.js
index 5bb8a2a..b702b73 100644
--- a/src/utilities/readIndexConfig.js
+++ b/src/utilities/readIndexConfig.js
@@ -3,12 +3,12 @@ import path from 'path';
 import hasIndex from './hasIndex';
 import {CREATE_INDEX_PATTERN} from './constants';
 
-export default (directoryPath) => {
-  if (!hasIndex(directoryPath)) {
+export default (directoryPath, options = {}) => {
+  if (!hasIndex(directoryPath, options)) {
     return {};
   }
 
-  const indexPath = path.resolve(directoryPath, 'index.js');
+  const indexPath = path.resolve(directoryPath, options.outputFile || 'index.js');
   const indexContents = fs.readFileSync(indexPath, 'utf-8');
   const found = indexContents.match(CREATE_INDEX_PATTERN);
   const configLine = typeof found[1] === 'string' ? found[1].trim() : '';
diff --git a/src/utilities/validateTargetDirectory.js b/src/utilities/validateTargetDirectory.js
index 99f457b..7649234 100644
--- a/src/utilities/validateTargetDirectory.js
+++ b/src/utilities/validateTargetDirectory.js
@@ -24,7 +24,7 @@ export default (targetDirectory, options = {}) => {
     }
   }
 
-  const indexFilePath = path.resolve(targetDirectory, './index.js');
+  const indexFilePath = path.resolve(targetDirectory, './' + (options.outputFile || 'index.js'));
 
   try {
     fs.statSync(indexFilePath);
diff --git a/src/utilities/writeIndex.js b/src/utilities/writeIndex.js
index d12d96a..27e65aa 100644
--- a/src/utilities/writeIndex.js
+++ b/src/utilities/writeIndex.js
@@ -10,15 +10,15 @@ import sortByDepth from './sortByDepth';
 export default (directoryPaths, options = {}) => {
   const sortedDirectoryPaths = sortByDepth(directoryPaths)
     .filter((directoryPath) => {
-      return validateTargetDirectory(directoryPath, {silent: options.ignoreUnsafe});
+      return validateTargetDirectory(directoryPath, {silent: options.ignoreUnsafe, outputFile: options.outputFile});
     });
 
   _.forEach(sortedDirectoryPaths, (directoryPath) => {
-    const config = readIndexConfig(directoryPath);
+    const config = readIndexConfig(directoryPath, options);
     const optionsWithConfig = Object.assign({}, options, {config});
     const siblings = readDirectory(directoryPath, optionsWithConfig);
     const indexCode = createIndexCode(siblings, optionsWithConfig);
-    const indexFilePath = path.resolve(directoryPath, 'index.js');
+    const indexFilePath = path.resolve(directoryPath, options.outputFile || 'index.js');
 
     fs.writeFileSync(indexFilePath, indexCode);
   });
diff --git a/src/utilities/writeIndexCli.js b/src/utilities/writeIndexCli.js
index e7626ff..e69bd87 100644
--- a/src/utilities/writeIndexCli.js
+++ b/src/utilities/writeIndexCli.js
@@ -16,6 +16,7 @@ export default (directoryPaths, options = {}) => {
   sortedDirectoryPaths = sortByDepth(directoryPaths);
 
   log('Target directories', sortedDirectoryPaths);
+  log('Output file', options.outputFile);
   if (options.updateIndex) {
     log('Update index:', options.updateIndex ? chalk.green('true') : chalk.red('false'));
   } else {
@@ -27,7 +28,7 @@ export default (directoryPaths, options = {}) => {
   if (options.updateIndex || options.recursive) {
     sortedDirectoryPaths = _.map(sortedDirectoryPaths, (dir) => {
       return findIndexFiles(dir, {
-        fileName: options.updateIndex ? 'index.js' : '*',
+        fileName: options.updateIndex ? options.outputFile || 'index.js' : '*',
         silent: options.updateIndex || options.ignoreUnsafe
       });
     });
@@ -39,13 +40,13 @@ export default (directoryPaths, options = {}) => {
   }
 
   sortedDirectoryPaths = sortedDirectoryPaths.filter((directoryPath) => {
-    return validateTargetDirectory(directoryPath, {silent: options.ignoreUnsafe});
+    return validateTargetDirectory(directoryPath, {silent: options.ignoreUnsafe, outputFile: options.outputFile});
   });
 
   _.forEach(sortedDirectoryPaths, (directoryPath) => {
     let existingIndexCode;
 
-    const config = readIndexConfig(directoryPath);
+    const config = readIndexConfig(directoryPath, options);
 
     const siblings = readDirectory(directoryPath, {
       config,
@@ -59,7 +60,7 @@ export default (directoryPaths, options = {}) => {
       config
     });
 
-    const indexFilePath = path.resolve(directoryPath, 'index.js');
+    const indexFilePath = path.resolve(directoryPath, options.outputFile || 'index.js');
 
     try {
       existingIndexCode = fs.readFileSync(indexFilePath, 'utf8');