diff --git a/boot.php b/boot.php
index fa99a7bb39..8ce33b2bdf 100644
--- a/boot.php
+++ b/boot.php
@@ -683,22 +683,3 @@ function validate_include(&$file)
 	// Simply return flag
 	return $valid;
 }
-
-/**
- * PHP 5 compatible dirname() with count parameter
- *
- * @see http://php.net/manual/en/function.dirname.php#113193
- *
- * @deprecated with PHP 7
- * @param string $path
- * @param int    $levels
- * @return string
- */
-function rdirname($path, $levels = 1)
-{
-	if ($levels > 1) {
-		return dirname(rdirname($path, --$levels));
-	} else {
-		return dirname($path);
-	}
-}
diff --git a/src/App/BaseURL.php b/src/App/BaseURL.php
index 6b79fad466..7c286514a6 100644
--- a/src/App/BaseURL.php
+++ b/src/App/BaseURL.php
@@ -355,7 +355,7 @@ class BaseURL
 		if (!empty($relative_script_path)) {
 			// Module
 			if (!empty($this->server['QUERY_STRING'])) {
-				$this->urlPath = trim(rdirname($relative_script_path, substr_count(trim($this->server['QUERY_STRING'], '/'), '/') + 1), '/');
+				$this->urlPath = trim(dirname($relative_script_path, substr_count(trim($this->server['QUERY_STRING'], '/'), '/') + 1), '/');
 			} else {
 				// Root page
 				$this->urlPath = trim($relative_script_path, '/');