diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java
index 1958f58..d55be72 100644
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java
@@ -55,7 +55,7 @@
 public class InteractiveFeatureLocatorAction implements IWorkbenchWindowActionDelegate {
 	private IWorkbenchWindow window;
 	private Display display;
-	 private String featureFolderPath = null; // �{�ԗp
+	 private String featureFolderPath = ""; // �{�ԗp
 //	private String featureFolderPath = "C:\\Users\\student\\git\\org.ntlab.interactiveFeatureLocator\\InteractiveFeatureLocator\\Feature\\Feature1593375"; // �e�X�g�p
 	private String featureXMLPath = null;
 	private String otherfeatureTraceName = null;