diff --git a/dist/image-sequencer.js b/dist/image-sequencer.js
index 1b9ea633..b81c3518 100644
--- a/dist/image-sequencer.js
+++ b/dist/image-sequencer.js
@@ -184151,7 +184151,7 @@ ImageSequencer = function ImageSequencer(options) {
   options = options || {};
   options.inBrowser = options.inBrowser || typeof window !== 'undefined';
   if (options.inBrowser) options.ui = options.ui || require('./UserInterface');
-  options.initial_image = "";
+  options.initialImage = "";
 
   var image,
       steps = [],
@@ -184198,8 +184198,8 @@ ImageSequencer = function ImageSequencer(options) {
       if (previousStep) {
         // connect output of last step to input of this step
         previousStep.options.output = function output(image) {
-          if (sequencer.steps[0].options.initial_image) {
-            options.initial_image = sequencer.steps[0].options.initial_image;
+          if (sequencer.steps[0].options.initialImage) {
+            options.initialImage = sequencer.steps[0].options.initialImage;
           }
           log('running module "' + name + '"');
           // display the image in any available ui
@@ -184239,7 +184239,7 @@ ImageSequencer = function ImageSequencer(options) {
     image.onload = function() {
       run(image);
       if (callback) callback(image);
-      options.initial_image = image;
+      options.initialImage = image;
     }
     image.src = src;
   }
@@ -184386,7 +184386,7 @@ module.exports = function ImageSelect(options) {
 
           image = new Image();
           image.src = e.target.result;
-          options.initial_image = image;
+          options.initialImage = image;
           el.html(image); // may be redundant
 
           // this is done once per image:
@@ -184412,7 +184412,7 @@ module.exports = function ImageSelect(options) {
   // this module is unique because it creates the image
   function draw(image) {
     el.html(image);
-    options.initial_image = image;
+    options.initialImage = image;
     if (options.output) options.output(image);
   }
 
diff --git a/index.html b/index.html
index 99e01aca..e033c851 100644
--- a/index.html
+++ b/index.html
@@ -74,7 +74,7 @@
         $('.add-step').click(function(e) {
           e.preventDefault();
           sequencer.addStep($('.select-module').val());
-          sequencer.run(sequencer.options.initial_image); // later we might only run this step, if we can fetch the image output from the previous
+          sequencer.run(sequencer.options.initialImage); // later we might only run this step, if we can fetch the image output from the previous
 
         });
 
diff --git a/src/ImageSequencer.js b/src/ImageSequencer.js
index 24d1a2f6..fa34eacb 100644
--- a/src/ImageSequencer.js
+++ b/src/ImageSequencer.js
@@ -5,7 +5,7 @@ ImageSequencer = function ImageSequencer(options) {
   options = options || {};
   options.inBrowser = options.inBrowser || typeof window !== 'undefined';
   if (options.inBrowser) options.ui = options.ui || require('./UserInterface');
-  options.initial_image = "";
+  options.initialImage = "";
 
   var image,
       steps = [],
@@ -52,8 +52,8 @@ ImageSequencer = function ImageSequencer(options) {
       if (previousStep) {
         // connect output of last step to input of this step
         previousStep.options.output = function output(image) {
-          if (sequencer.steps[0].options.initial_image) {
-            options.initial_image = sequencer.steps[0].options.initial_image;
+          if (sequencer.steps[0].options.initialImage) {
+            options.initialImage = sequencer.steps[0].options.initialImage;
           }
           log('running module "' + name + '"');
           // display the image in any available ui
@@ -93,7 +93,7 @@ ImageSequencer = function ImageSequencer(options) {
     image.onload = function() {
       run(image);
       if (callback) callback(image);
-      options.initial_image = image;
+      options.initialImage = image;
     }
     image.src = src;
   }
diff --git a/src/modules/ImageSelect.js b/src/modules/ImageSelect.js
index 66bed966..a4d14251 100644
--- a/src/modules/ImageSelect.js
+++ b/src/modules/ImageSelect.js
@@ -42,7 +42,7 @@ module.exports = function ImageSelect(options) {
 
           image = new Image();
           image.src = e.target.result;
-          options.initial_image = image;
+          options.initialImage = image;
           el.html(image); // may be redundant
 
           // this is done once per image:
@@ -68,7 +68,7 @@ module.exports = function ImageSelect(options) {
   // this module is unique because it creates the image
   function draw(image) {
     el.html(image);
-    options.initial_image = image;
+    options.initialImage = image;
     if (options.output) options.output(image);
   }