diff --git a/reference/image/functions/image_type_to_mime_type.xml b/reference/image/functions/image-type-to-mime-type.xml
similarity index 98%
rename from reference/image/functions/image_type_to_mime_type.xml
rename to reference/image/functions/image-type-to-mime-type.xml
index aec798ce08..c8db8a6044 100644
--- a/reference/image/functions/image_type_to_mime_type.xml
+++ b/reference/image/functions/image-type-to-mime-type.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.1 $ -->
 <!-- splitted from ./en/functions/image.xml, last change in rev 1.36 -->
  <refentry id="function.image-type-to-mime-type">
   <refnamediv>