diff --git a/bin/coless b/bin/coless
index 2b51b6a..be763b9 100755
--- a/bin/coless
+++ b/bin/coless
@@ -1,6 +1,6 @@
 #!/bin/sh
 export \
     LESSOPEN='| /usr/bin/src-hilite-lesspipe.sh %s' \
-    LESS=-R
-less "$@"
+    LESS="${LESS} -R"
+exec less "$@"