--- a/metatag.theme.inc	2011-10-18 17:38:06.000000000 +0000
+++ b/metatag.theme.inc	2011-10-18 17:37:56.000000000 +0000
@@ -15,7 +15,7 @@ function theme_metatag($variables) {
   $element = &$variables['element'];
   element_set_attributes($element, array('name', '#value' => 'content'));
   unset($element['#value']);
-  return theme_html_tag($variables);
+  return theme('html_tag', $variables);
 }
 
 /**
@@ -28,7 +28,7 @@ function theme_metatag_http_equiv($varia
   $element = &$variables['element'];
   element_set_attributes($element, array('#name' => 'http-equiv', '#value' => 'content'));
   unset($element['#value']);
-  return theme_html_tag($variables);
+  return theme('html_tag', $variables);
 }
 
 /**
@@ -41,7 +41,7 @@ function theme_metatag_link_rel($variabl
   $element = &$variables['element'];
   element_set_attributes($element, array('#name' => 'rel', '#value' => 'href'));
   unset($element['#value']);
-  return theme_html_tag($variables);
+  return theme('html_tag', $variables);
 }
 
 /**
@@ -54,5 +54,5 @@ function theme_metatag_link_rev($variabl
   $element = &$variables['element'];
   element_set_attributes($element, array('#name' => 'rev', '#value' => 'href'));
   unset($element['#value']);
-  return theme_html_tag($variables);
+  return theme('html_tag', $variables);
 }