diff --git a/mode-customizations/makefile-mode.el b/mode-customizations/makefile-mode.el
index 2b0e37d..5a78611 100644
--- a/mode-customizations/makefile-mode.el
+++ b/mode-customizations/makefile-mode.el
@@ -3,4 +3,5 @@
             (flyspell-prog-mode)
             (linum-mode t)
             (fci-mode)
+            (setq tab-width 4)
             (highlight-indentation-mode)))