diff --git a/home/.config/git/config b/home/.config/git/config
index 0e2108d..176755b 100644
--- a/home/.config/git/config
+++ b/home/.config/git/config
@@ -38,6 +38,7 @@
     dc = "diff --cached"
     ds = "diff --staged"
     dw = "diff --word-diff"
+    dcm = "!sh -c 'git diff $0~ $0'"
 
     b = "branch"
     ba = "branch --all"