diff --git a/src/plugins/cppeditor/CppEditor.mimetypes.xml b/src/plugins/cppeditor/CppEditor.mimetypes.xml
index cd79d5f441e..0c58890e9b5 100644
--- a/src/plugins/cppeditor/CppEditor.mimetypes.xml
+++ b/src/plugins/cppeditor/CppEditor.mimetypes.xml
@@ -133,5 +133,6 @@
         <glob pattern="*.cxx"/>
         <glob pattern="*.c++"/>
         <glob pattern="*.C"/>
+        <glob pattern="*.inl"/>
     </mime-type>
 </mime-info>