diff --git a/bin/twn b/bin/twn
index 537810e..c39a524 100755
--- a/bin/twn
+++ b/bin/twn
@@ -41,7 +41,11 @@ case "$1" in
     api-gen  ) "$toolpath"/gen_api_header.sh
                ;;
 
-    wiki     ) xdg-open "file://$TWNROOT/docs/wiki/index.html"
+    wiki     ) if [ "$OS" = "Windows_NT" ]; then
+                   explorer "file://""$(cygpath -w "$(command realpath $TWNROOT/docs/wiki/index.html)")"
+               else
+                   xdg-open "file://$TWNROOT/docs/wiki/index.html"
+               fi
                ;;
 
     *        ) echo "Unknown command."