diff --git a/gns3server/modules/vpcs/vpcs_vm.py b/gns3server/modules/vpcs/vpcs_vm.py
index 7321f0c6d..78cc644d1 100644
--- a/gns3server/modules/vpcs/vpcs_vm.py
+++ b/gns3server/modules/vpcs/vpcs_vm.py
@@ -254,7 +254,10 @@ class VPCSVM(BaseVM):
                 except asyncio.TimeoutError:
                     if self._process.returncode is None:
                         log.warn("VPCS process {} is still running... killing it".format(self._process.pid))
-                        self._process.kill()
+                        try:
+                            self._process.kill()
+                        except OSError as e:
+                            raise VPCSError("Can not stop the VPCS process: {}".format(e))
 
         self._process = None
         self._started = False