diff --git a/res/bin/ndn b/res/bin/ndn
deleted file mode 100755
index 1ced1b6..0000000
--- a/res/bin/ndn
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/sh
-
-function usage() {
-    echo
-    echo Available commands:
-    for command in $(ls /Applications/NDN.app/Contents/Helpers/ 2>/dev/null); do
-        echo "  $command"
-    done
-    for command in $(ls /Applications/NDN.app/Contents/Resources/bin/ 2>/dev/null); do
-        echo "  $command"
-    done
-}
-
-if [[ $# -eq 0 ]]; then
-    echo ERROR: No command is specified
-    usage
-    exit 1
-fi
-
-if [[ -f /Applications/NDN.app/Contents/Helpers/"$1" ]]; then
-    /Applications/NDN.app/Contents/Helpers/"$@"
-elif [[ -f /Applications/NDN.app/Contents/Resources/bin/"$1" ]]; then
-    /Applications/NDN.app/Contents/Resources/bin/"$@"
-else
-    echo ERROR: Unknown is specified
-    usage
-    exit 1
-fi
diff --git a/res/ndn b/res/ndn
new file mode 100755
index 0000000..1c1b473
--- /dev/null
+++ b/res/ndn
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+NDN=`readlink "$0"`
+NDN_APP=`dirname "$NDN"`/..
+
+function usage() {
+    echo
+    echo Available commands:
+    for command in $(ls "$NDN_APP/Resources/bin/" 2>/dev/null); do
+        echo "  $command"
+    done
+}
+
+if [[ $# -eq 0 ]]; then
+    echo ERROR: No command is specified
+    usage
+    exit 1
+fi
+
+if [[ -f "$NDN_APP"/Helpers/"$1" ]]; then
+    "$NDN_APP"/Helpers/"$@"
+elif [[ -f "$NDN_APP"/Resources/bin/"$1" ]]; then
+    "$NDN_APP"/Resources/bin/"$@"
+else
+    echo ERROR: Unknown is specified
+    usage
+    exit 1
+fi