diff --git a/fish/functions/dsf.fish b/fish/functions/dsf.fish
new file mode 100644
index 0000000..e84e62f
--- /dev/null
+++ b/fish/functions/dsf.fish
@@ -0,0 +1,3 @@
+function dsf
+    command diff -u $argv[1] $argv[2] | diff-so-fancy
+end