diff --git a/imagefield_crop.module b/imagefield_crop.module
index db91be6..cb36730 100644
--- a/imagefield_crop.module
+++ b/imagefield_crop.module
@@ -128,3 +128,11 @@ function theme_imagefield_crop_widget_preview($item = NULL) {
   return '<img src="'. file_create_url($thumb_path) . $query_string . '" />';
 }
 
+/**
+* Implements hook_filefield_sources_widgets().
+*
+* This returns a list of widgets that are compatible with FileField Sources.
+*/
+function imagefield_crop_filefield_sources_widgets() {
+  return array('imagefield_crop_widget');
+}