diff --git a/nova/network/quantum/melange_ipam_lib.py b/nova/network/quantum/melange_ipam_lib.py
index ff46bf0413c..ad5e4aefb0e 100644
--- a/nova/network/quantum/melange_ipam_lib.py
+++ b/nova/network/quantum/melange_ipam_lib.py
@@ -158,7 +158,7 @@ def get_tenant_id_by_net_id(self, context, net_id, vif_id, project_id):
         for tid in tenant_ids:
             try:
                 self.m_conn.get_allocated_ips(net_id, vif_id, tid)
-            except KeyError:
+            except Exception:
                 continue
             ipam_tenant_id = tid
             break