diff --git a/doc/.gitattributes b/doc/.gitattributes
index f4d35defc..5edfa047f 100644
--- a/doc/.gitattributes
+++ b/doc/.gitattributes
@@ -3,7 +3,6 @@
 *.6	NHSUBST
 *.7	NHSUBST
 fixes*	NHSUBST
-*.txt NHSUBST
 config.nh NHSUBST
 Guidebook.txt NH_header=no
 tmac.n NH_header=no