diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000..c431021b22
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+**.C linguist-language=C++
+**.H linguist-language=C++
+**.L linguist-language=Lex