diff --git a/filetypes.xml b/filetypes.xml
index 76b923a0a610e96012262bd795a137b7ad362011..a761364a8111f8bcfa648a13105a3777c4490769 100644
--- a/filetypes.xml
+++ b/filetypes.xml
@@ -8,6 +8,7 @@
       <mapping ext="factories" type="PLAIN_TEXT" />
       <mapping ext="provides" type="PLAIN_TEXT" />
       <mapping ext="lombok" type="PLAIN_TEXT" />
+      <mapping ext="cnf" type="PLAIN_TEXT" />
       <removed_mapping ext="apk" approved="true" type="ARCHIVE" />
       <removed_mapping ext="psd" approved="true" type="Image" />
     </extensionMap>