diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 12f7e69115..27e72ab8b5 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -3454,6 +3454,9 @@ int qemuMonitorJSONSendKey(qemuMonitorPtr mon,
     if (!cmd)
         goto cleanup;
 
+    /* @keys is part of @cmd now. Avoid double free */
+    keys = NULL;
+
     if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
         goto cleanup;