diff --git a/lib/extras.php b/lib/extras.php
index f4d9810..994ff30 100644
--- a/lib/extras.php
+++ b/lib/extras.php
@@ -2,7 +2,7 @@
 /**
  * Clean up the_excerpt()
  */
-function roots_excerpt_more($more) {
+function roots_excerpt_more() {
   return ' &hellip; <a href="' . get_permalink() . '">' . __('Continued', 'roots') . '</a>';
 }
 add_filter('excerpt_more', 'roots_excerpt_more');
diff --git a/lib/gallery.php b/lib/gallery.php
index 67f4d01..975a8ed 100644
--- a/lib/gallery.php
+++ b/lib/gallery.php
@@ -123,7 +123,6 @@ if (current_theme_supports('bootstrap-gallery')) {
  * Add class="thumbnail img-thumbnail" to attachment items
  */
 function roots_attachment_link_class($html) {
-  $postid = get_the_ID();
   $html = str_replace('<a', '<a class="thumbnail img-thumbnail"', $html);
   return $html;
 }
diff --git a/lib/nav.php b/lib/nav.php
index 186ada2..493e562 100644
--- a/lib/nav.php
+++ b/lib/nav.php
@@ -74,6 +74,8 @@ add_filter('nav_menu_item_id', '__return_null');
  * Use Roots_Nav_Walker() by default
  */
 function roots_nav_menu_args($args = '') {
+  $roots_nav_menu_args = array();
+
   $roots_nav_menu_args['container'] = false;
 
   if (!$args['items_wrap']) {
diff --git a/lib/utils.php b/lib/utils.php
index 93e5116..fb8d737 100644
--- a/lib/utils.php
+++ b/lib/utils.php
@@ -8,7 +8,7 @@ function is_element_empty($element) {
 }
 
 // Tell WordPress to use searchform.php from the templates/ directory
-function roots_get_search_form($form) {
+function roots_get_search_form() {
   $form = '';
   locate_template('/templates/searchform.php', true, false);
   return $form;