diff --git a/contrib/plugins/hotblocks.c b/contrib/plugins/hotblocks.c
index 6b74d25fea..4de1b13494 100644
--- a/contrib/plugins/hotblocks.c
+++ b/contrib/plugins/hotblocks.c
@@ -69,8 +69,8 @@ static void plugin_exit(qemu_plugin_id_t id, void *p)
         }
 
         g_list_free(it);
-        g_mutex_unlock(&lock);
     }
+    g_mutex_unlock(&lock);
 
     qemu_plugin_outs(report->str);
 }