diff --git a/init.el b/init.el
index d1eb3ec..49c4ab4 100644
--- a/init.el
+++ b/init.el
@@ -280,6 +280,10 @@
                                          ))
   (+browse-url-transform-url-global-mode +1))
 
+(setup c-mode
+  (:with-hook c-mode-common-hook
+    (:hook #'indent-tabs-mode)))
+
 (setup calendar
   (require '_location)
   (:option diary-file (private/ "diary")))