diff --git a/git/gitconfig.include b/git/gitconfig.include
index 38ef20e..bc6dd8b 100644
--- a/git/gitconfig.include
+++ b/git/gitconfig.include
@@ -1,3 +1,5 @@
+[core]
+	excludesfile = ~/.gitignore
 [color]
 	ui = auto
 	interactive = auto
diff --git a/git/gitignore b/git/gitignore
new file mode 100644
index 0000000..ddb965e
--- /dev/null
+++ b/git/gitignore
@@ -0,0 +1 @@
+*.s[a-w][a-z]