diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..13764bb
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+# Tell github that .re and .rei files are Reason, sometimes recognized as C/C++
+*.re linguist-language=Reason
+*.rei linguist-language=Reason