diff --git a/wimax_manager.conf b/wimax_manager.conf
index f27c6e4..714c769 100644
--- a/wimax_manager.conf
+++ b/wimax_manager.conf
@@ -18,6 +18,11 @@
   rm -rf /var/lock/gct
 end script
 
+post-stop script
+  # Clean up any leftover lock file.
+  rm -rf /var/lock/gct
+end script
+
 respawn
 expect fork