diff --git a/ttyclock.c b/ttyclock.c
index 558d9b2..4c1916d 100644
--- a/ttyclock.c
+++ b/ttyclock.c
@@ -671,4 +671,4 @@ main(int argc, char **argv)
      return 0;
 }
 
-// vim: expandtab tabstop=4 softtabstop=4 shiftwidth=4
+// vim: expandtab tabstop=5 softtabstop=5 shiftwidth=5
diff --git a/ttyclock.h b/ttyclock.h
index ba8fe24..024a479 100644
--- a/ttyclock.h
+++ b/ttyclock.h
@@ -146,4 +146,4 @@ const Bool number[][15] =
 
 #endif /* TTYCLOCK_H_INCLUDED */
 
-// vim: expandtab tabstop=4 softtabstop=4 shiftwidth=4
+// vim: expandtab tabstop=5 softtabstop=5 shiftwidth=5