diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..a950de2
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,6 @@
+*.h linguist-language=c
+
+*.css linguist-documentation=true
+*.htm linguist-documentation=true
+*.html linguist-documentation=true
+*.prc linguist-documentation=true