diff --git a/pom.xml b/pom.xml
index 3bf1bde..b6e87a9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
   <groupId>istlab.KisoJikkenNWP</groupId>
   <artifactId>KisoJikkenNWP</artifactId>
   <packaging>jar</packaging>
-  <version>0.72</version>
+  <version>0.73</version>
   <name>KisoJikkenNWP</name>
   <url>http://maven.apache.org</url>
 
diff --git a/src/main/java/istlab/KisoJikken/FileTreeModel.java b/src/main/java/istlab/KisoJikken/FileTreeModel.java
index ef9b4ed..d462613 100644
--- a/src/main/java/istlab/KisoJikken/FileTreeModel.java
+++ b/src/main/java/istlab/KisoJikken/FileTreeModel.java
@@ -8,12 +8,16 @@
 import javax.swing.tree.TreePath;
 
 class MyFile extends File {
+    static String userhome_escaped; 
     public MyFile(String pathname) {
         super(pathname);
     }
 
     public String toString() {
-        return super.toString().replaceAll(App.userhome, "~");
+        if (userhome_escaped == null){
+            userhome_escaped = App.userhome.replaceAll("\\","\\\\");
+        }
+        return super.toString().replaceAll(userhome_escaped, "~");
     }
 }
 
diff --git a/src/main/java/istlab/KisoJikken/Launcher.java b/src/main/java/istlab/KisoJikken/Launcher.java
index 2f38cd8..c036a39 100644
--- a/src/main/java/istlab/KisoJikken/Launcher.java
+++ b/src/main/java/istlab/KisoJikken/Launcher.java
@@ -29,7 +29,7 @@
 public class Launcher extends JFrame implements MouseInputListener, KeyListener {
 
     public static Launcher theapp;
-    public static String version = "0.72";
+    public static String version = "0.73";
     // JPanel mainP;
     File root;
     JTree tree;