diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index df0ac722a8b9a3d89aeb569a57a9478b0efaa71a..114e8851d9497480f01de9c8e364830b2256d387 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4222,7 +4222,7 @@ retry:
             }
             if (graphics->data.vnc.websocket) {
                 ignore_value(virPortAllocatorRelease(driver->webSocketPorts,
-                                                     graphics->data.vnc.port));
+                                                     graphics->data.vnc.websocket));
             }
         }
         if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE &&