diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 000000000..6414a0ab5
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+testdata/*.[0-9] linguist-documentation
diff --git a/doc/Changelog b/doc/Changelog
index 37ffa9018..d787934d0 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,3 +1,6 @@
+3 November 2016: Wouter
+	- .gitattributes line for githubs code language display.
+
 2 November 2016: Wouter
 	- iana portlist update.