diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..6a7e8b18
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,4 @@
+*.em -linguist-detectable
+*.tst -linguist-detectable
+*.1 -linguist-detectable
+*.3 -linguist-detectable