diff --git a/vviewer/vviewer.py b/vviewer/vviewer.py
index 1056f3ed5a7ccc5fc823fe422290b7ffb1091e49..bb35c7d2bae38b822498377947d53db35d075f39 100755
--- a/vviewer/vviewer.py
+++ b/vviewer/vviewer.py
@@ -1506,6 +1506,7 @@ class vviewer(QtGui.QMainWindow):
             x = int(self.x_box.text())
             y = int(self.y_box.text())
             z = int(self.z_box.text())
+            # import pdb; pdb.set_trace()
             index = self.imagelist.currentRow()
             if self.voxel_coord:
                 if index >= 0: