diff --git a/NT/init_nt b/NT/init_nt
index f015e75b097ac5334b511d315e1809ca9707d068..b107646a3d66fa7af39a0c6dcfc35568f2ab0ca6 100755
--- a/NT/init_nt
+++ b/NT/init_nt
@@ -12,6 +12,12 @@ NTMOUNT=
 PATH=`pwd`/tools:$PATH
 CC=rntcc
 NTTOOLS=`pwd`/tools/lib
+if [ "x$NTMOUNT" = x ]; then
+  MNTREPLACE=""
+else
+  MNTREPLACE="s@$NTMOUNT@@g
+"
+fi
 
 export NTHOST NTDRIVE NTCC CC PATH NTTOOLS
 
diff --git a/NT/tools/lib b/NT/tools/lib
index 537b9d2887d149101f4c8bd7c31ebb388e5d4bec..9ceb19114e614a448522d1fcc71e45611e291b27 100644
--- a/NT/tools/lib
+++ b/NT/tools/lib
@@ -6,7 +6,7 @@ if [ $NT_DEBUG = yes ]; then
 fi
 
 fixpath() {
-  echo "$*" | sed -e "s@$NTMOUNT@@g" -e "s@/@\\\\@g"
+  echo "$*" | sed -e "${MNTREPLACE}s@/@\\\\@g"
 }
 
 fixabspath() {