diff --git a/wp-includes/class-wp-customize-section.php b/wp-includes/class-wp-customize-section.php
index 772351e76..478bc29dd 100644
--- a/wp-includes/class-wp-customize-section.php
+++ b/wp-includes/class-wp-customize-section.php
@@ -46,10 +46,10 @@ class WP_Customize_Section {
 	 * @return bool False if theme doesn't support the section or user doesn't have the capability.
 	 */
 	function check_capabilities() {
-		if ( ! $this->capability || ! current_user_can( $this->capability ) )
+		if ( $this->capability && ! call_user_func_array( 'current_user_can', (array) $this->capability ) )
 			return false;
 
-		if ( $this->theme_supports && ! current_theme_supports( $this->theme_supports ) )
+		if ( $this->theme_supports && ! call_user_func_array( 'current_theme_supports', (array) $this->theme_supports ) )
 			return false;
 
 		return true;
diff --git a/wp-includes/class-wp-customize-setting.php b/wp-includes/class-wp-customize-setting.php
index b01a13fcb..82369d7a6 100644
--- a/wp-includes/class-wp-customize-setting.php
+++ b/wp-includes/class-wp-customize-setting.php
@@ -267,10 +267,10 @@ class WP_Customize_Setting {
 	public final function check_capabilities() {
 		global $customize;
 
-		if ( ! $this->capability || ! current_user_can( $this->capability ) )
+		if ( $this->capability && ! call_user_func_array( 'current_user_can', (array) $this->capability ) )
 			return false;
 
-		if ( $this->theme_supports && ! current_theme_supports( $this->theme_supports ) )
+		if ( $this->theme_supports && ! call_user_func_array( 'current_theme_supports', (array) $this->theme_supports ) )
 			return false;
 
 		$section = $customize->get_section( $this->section );