diff --git a/wp-admin/categories.php b/wp-admin/categories.php
index 7536c1c9b8..979cb01411 100644
--- a/wp-admin/categories.php
+++ b/wp-admin/categories.php
@@ -146,7 +146,7 @@ endif; ?>
 <p class="search-box">
 	<label class="hidden" for="category-search-input"><?php _e('Search Categories'); ?>:</label>
 	<input type="text" class="search-input" id="category-search-input" name="s" value="<?php _admin_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Categories' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Categories' ); ?>" class="button" />
 </p>
 </form>
 <br class="clear" />
diff --git a/wp-admin/edit-comments.php b/wp-admin/edit-comments.php
index d7e794ba50..1e31228e2c 100644
--- a/wp-admin/edit-comments.php
+++ b/wp-admin/edit-comments.php
@@ -154,7 +154,7 @@ unset($status_links);
 <p class="search-box">
 	<label class="hidden" for="comment-search-input"><?php _e( 'Search Comments' ); ?>:</label>
 	<input type="text" class="search-input" id="comment-search-input" name="s" value="<?php _admin_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Comments' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Comments' ); ?>" class="button" />
 </p>
 
 <?php
diff --git a/wp-admin/edit-link-categories.php b/wp-admin/edit-link-categories.php
index 52ce418321..d63b1aa408 100644
--- a/wp-admin/edit-link-categories.php
+++ b/wp-admin/edit-link-categories.php
@@ -74,7 +74,7 @@ endif; ?>
 <p class="search-box">
 	<label class="hidden" for="category-search-input"><?php _e( 'Search Categories' ); ?>:</label>
 	<input type="text" class="search-input" id="category-search-input" name="s" value="<?php _admin_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Categories' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Categories' ); ?>" class="button" />
 </p>
 </form>
 <br class="clear" />
diff --git a/wp-admin/edit-pages.php b/wp-admin/edit-pages.php
index 7a2cee0658..28b9e2710c 100644
--- a/wp-admin/edit-pages.php
+++ b/wp-admin/edit-pages.php
@@ -160,7 +160,7 @@ endif;
 <p class="search-box">
 	<label class="hidden" for="page-search-input"><?php _e( 'Search Pages' ); ?>:</label>
 	<input type="text" class="search-input" id="page-search-input" name="s" value="<?php _admin_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Pages' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Pages' ); ?>" class="button" />
 </p>
 
 <?php if ( isset($_GET['post_status'] ) ) : ?>
diff --git a/wp-admin/edit-tags.php b/wp-admin/edit-tags.php
index c032c66dce..a66dcf96f6 100644
--- a/wp-admin/edit-tags.php
+++ b/wp-admin/edit-tags.php
@@ -143,7 +143,7 @@ endif; ?>
 <p class="search-box">
 	<label class="hidden" for="tag-search-input"><?php _e( 'Search Tags' ); ?>:</label>
 	<input type="text" class="search-input" id="tag-search-input" name="s" value="<?php _admin_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Tags' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Tags' ); ?>" class="button" />
 </p>
 </form>
 <br class="clear" />
diff --git a/wp-admin/edit.php b/wp-admin/edit.php
index 569c4c05aa..3b75770928 100644
--- a/wp-admin/edit.php
+++ b/wp-admin/edit.php
@@ -151,7 +151,7 @@ endif;
 <p class="search-box">
 	<label class="hidden" for="post-search-input"><?php _e( 'Search Posts' ); ?>:</label>
 	<input type="text" class="search-input" id="post-search-input" name="s" value="<?php the_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Posts' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Posts' ); ?>" class="button" />
 </p>
 
 <?php if ( isset($_GET['post_status'] ) ) : ?>
diff --git a/wp-admin/link-manager.php b/wp-admin/link-manager.php
index 04395c43cc..8e91caf493 100644
--- a/wp-admin/link-manager.php
+++ b/wp-admin/link-manager.php
@@ -93,7 +93,7 @@ if ( isset($_GET['deleted']) ) {
 <p class="search-box">
 	<label class="hidden" for="link-search-input"><?php _e( 'Search Links' ); ?>:</label>
 	<input type="text" class="search-input" id="link-search-input" name="s" value="<?php _admin_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Links' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Links' ); ?>" class="button" />
 </p>
 </form>
 <br class="clear" />
diff --git a/wp-admin/upload.php b/wp-admin/upload.php
index 463df1ba84..a6a6c03f04 100644
--- a/wp-admin/upload.php
+++ b/wp-admin/upload.php
@@ -216,7 +216,7 @@ unset($type_links);
 <p class="search-box">
 	<label class="hidden" for="media-search-input"><?php _e( 'Search Media' ); ?>:</label>
 	<input type="text" class="search-input" id="media-search-input" name="s" value="<?php the_search_query(); ?>" />
-	<input type="submit" value="<?php _e( 'Search Media' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Media' ); ?>" class="button" />
 </p>
 </form>
 
diff --git a/wp-admin/users.php b/wp-admin/users.php
index d0b3431ccb..0bf9cc450b 100644
--- a/wp-admin/users.php
+++ b/wp-admin/users.php
@@ -305,7 +305,7 @@ unset($role_links);
 <p class="search-box">
 	<label class="hidden" for="user-search-input"><?php _e( 'Search Users' ); ?>:</label>
 	<input type="text" class="search-input" id="user-search-input" name="usersearch" value="<?php echo attribute_escape($wp_user_search->search_term); ?>" />
-	<input type="submit" value="<?php _e( 'Search Users' ); ?>" class="button-primary" />
+	<input type="submit" value="<?php _e( 'Search Users' ); ?>" class="button" />
 </p>
 </form>