diff --git a/filetypes.xml b/filetypes.xml
index 10a5289..15d9e18 100644
--- a/filetypes.xml
+++ b/filetypes.xml
@@ -4,6 +4,7 @@
     <extensionMap>
       <mapping pattern="ArtifactDB" type="AUTO_DETECTED" />
       <mapping ext="mat" type="AUTO_DETECTED" />
+      <mapping ext="db" type="AUTO_DETECTED" />
       <mapping ext=".tabnine.model" type="Tabnine project model file" />
       <mapping ext=".tabnine" type="Tabnine project model file" />
       <mapping ext=".model" type="Tabnine project model file" />