diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 59ad93a4cba3a562facd4bf81ab4ce0a5b06208b..e7a3c4289e8233e74d897d1fd621e9c273817992 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7784,7 +7784,10 @@ qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
 
     switch (glisten->type) {
     case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
-        virBufferAddLit(&opt, "unix:");
+        if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_MULTI_SERVERS))
+            virBufferAddLit(&opt, "vnc=unix:");
+        else
+            virBufferAddLit(&opt, "unix:");
         virQEMUBuildBufferEscapeComma(&opt, glisten->socket);
         break;