diff --git a/filetypes.xml b/filetypes.xml
index e64568d..afc0a77 100644
--- a/filetypes.xml
+++ b/filetypes.xml
@@ -3,6 +3,7 @@
     <ignoreFiles list="*$py.class;*.pyc;*.pyo;*.rbc;*.yarb;*~;.DS_Store;.git;.hg;.svn;CVS;__pycache__;_svn;vssver.scc;vssver2.scc" />
     <extensionMap>
       <mapping pattern="ArtifactDB" type="AUTO_DETECTED" />
+      <mapping ext="mat" type="AUTO_DETECTED" />
       <mapping ext=".tabnine" type="Tabnine project model file" />
       <mapping ext=".model" type="Tabnine project model file" />
       <mapping ext="tabnine" type="Tabnine project model file" />