diff --git a/systemvm/patches/debian/config/opt/cloud/bin/cs_staticroutes.py b/systemvm/patches/debian/config/opt/cloud/bin/cs_staticroutes.py
index 98244db03c8..d5ffae15cbb 100755
--- a/systemvm/patches/debian/config/opt/cloud/bin/cs_staticroutes.py
+++ b/systemvm/patches/debian/config/opt/cloud/bin/cs_staticroutes.py
@@ -23,7 +23,10 @@ def merge(dbag, staticroutes):
         key = route['ip_address']
         revoke = route['revoke']
         if revoke:
-            del dbag[key]
+            try:
+                del dbag[key]
+            except KeyError:
+                pass
         else:
             dbag[key] = route