diff --git a/phpBB/includes/functions_compatibility.php b/phpBB/includes/functions_compatibility.php
index b371978ee5..efd586c234 100644
--- a/phpBB/includes/functions_compatibility.php
+++ b/phpBB/includes/functions_compatibility.php
@@ -182,5 +182,11 @@ function update_foes($group_id = false, $user_id = false)
 */
 function get_user_rank($user_rank, $user_posts, &$rank_title, &$rank_img, &$rank_img_src)
 {
+	global $phpbb_root_path, $phpEx;
+	if (!function_exists('phpbb_get_user_rank'))
+	{
+		include($phpbb_root_path . 'includes/functions_display.' . $phpEx);
+	}
+
 	phpbb_get_user_rank(array('user_rank' => $user_rank), $user_posts, $rank_title, $rank_img, $rank_img_src);
 }
diff --git a/phpBB/includes/mcp/mcp_warn.php b/phpBB/includes/mcp/mcp_warn.php
index 356988d2e8..b4b6656499 100644
--- a/phpBB/includes/mcp/mcp_warn.php
+++ b/phpBB/includes/mcp/mcp_warn.php
@@ -336,7 +336,7 @@ class mcp_warn
 		$message = generate_text_for_display($user_row['post_text'], $user_row['bbcode_uid'], $user_row['bbcode_bitfield'], $parse_flags, true);
 
 		// Generate the appropriate user information for the user we are looking at
-		if (!function_exists('get_user_rank'))
+		if (!function_exists('phpbb_get_user_rank'))
 		{
 			include($phpbb_root_path . 'includes/functions_display.' . $phpEx);
 		}
@@ -486,7 +486,7 @@ class mcp_warn
 		}
 
 		// Generate the appropriate user information for the user we are looking at
-		if (!function_exists('get_user_rank'))
+		if (!function_exists('phpbb_get_user_rank'))
 		{
 			include($phpbb_root_path . 'includes/functions_display.' . $phpEx);
 		}
diff --git a/phpBB/includes/ucp/ucp_pm_viewmessage.php b/phpBB/includes/ucp/ucp_pm_viewmessage.php
index c98aa39b5b..a36ee398f4 100644
--- a/phpBB/includes/ucp/ucp_pm_viewmessage.php
+++ b/phpBB/includes/ucp/ucp_pm_viewmessage.php
@@ -403,7 +403,7 @@ function get_user_information($user_id, $user_row)
 
 	$user_row['avatar'] = ($user->optionget('viewavatars')) ? phpbb_get_user_avatar($user_row) : '';
 
-	if (!function_exists('get_user_rank'))
+	if (!function_exists('phpbb_get_user_rank'))
 	{
 		include($phpbb_root_path . 'includes/functions_display.' . $phpEx);
 	}
diff --git a/phpBB/phpbb/user_loader.php b/phpBB/phpbb/user_loader.php
index 35199d8864..4da2b383c6 100644
--- a/phpBB/phpbb/user_loader.php
+++ b/phpBB/phpbb/user_loader.php
@@ -212,7 +212,7 @@ class user_loader
 			return '';
 		}
 
-		if (!function_exists('get_user_rank'))
+		if (!function_exists('phpbb_get_user_rank'))
 		{
 			include($this->phpbb_root_path . 'includes/functions_display.' . $this->php_ext);
 		}