diff --git a/includes/features.user.inc b/includes/features.user.inc
index 152c5a8..f71ce99 100644
--- a/includes/features.user.inc
+++ b/includes/features.user.inc
@@ -26,6 +26,9 @@ function user_features_api() {
 function user_permission_features_export($data, &$export, $module_name = '') {
   $export['dependencies']['features'] = 'features';

+  // Retrieve previously featurized permissions to avoid doubles.
+  $featurized = features_get_default_map('user_permission');
+
   // Ensure the modules that provide the given permissions are included as dependencies.
   $map = user_permission_get_modules();
   foreach ($data as $perm) {
@@ -34,9 +37,21 @@ function user_permission_features_export($data, &$export, $module_name = '') {
     // vocabulary id.
     _user_features_change_term_permission($perm_name, 'machine_name');
     if (isset($map[$perm_name])) {
-      $perm_module = $map[$perm_name];
-      $export['dependencies'][$perm_module] = $perm_module;
-      $export['features']['user_permission'][$perm] = $perm;
+      // If this permission is already provided by another module, remove the permission
+      // and add the other module as a dependency.
+      if (isset($featurized[$perm_name]) && $featurized[$perm_name] != $module_name) {
+        if (isset($export['features']['user_permission'][$perm_name])) {
+          unset($export['features']['user_permission'][$perm_name]);
+        }
+        $module = $featurized[$perm_name];
+        $export['dependencies'][$module] = $module;
+      }
+      // If the permission has not yet been exported, add it
+      else {
+        $perm_module = $map[$perm_name];
+        $export['dependencies'][$perm_module] = $perm_module;
+        $export['features']['user_permission'][$perm] = $perm;
+      }
     }
   }