diff --git a/src/main.sh b/src/main.sh
index 90de278..9316ee9 100755
--- a/src/main.sh
+++ b/src/main.sh
@@ -89,7 +89,7 @@ fi
 if [ "${1:-}" = "--view-source" ]; then
   shift
   messageid="$1"
-  $NOTMUCH show --part=0 id:"$messageid" | $CATEMAIL | less
+  $NOTMUCH show --part=0 id:"$messageid" | $CATEMAIL | less -R
   exit
 fi