diff --git a/src/broadcom/simulator/v3dx_simulator.c b/src/broadcom/simulator/v3dx_simulator.c
index 07bbbe2f8c9..abc7f9196f1 100644
--- a/src/broadcom/simulator/v3dx_simulator.c
+++ b/src/broadcom/simulator/v3dx_simulator.c
@@ -269,6 +269,9 @@ v3dX(simulator_get_param_ioctl)(struct v3d_hw *v3d,
         case DRM_V3D_PARAM_SUPPORTS_PERFMON:
                 args->value = V3D_VERSION >= 41;
                 return 0;
+        case DRM_V3D_PARAM_SUPPORTS_MULTISYNC_EXT:
+                args->value = 0;
+                return 0;
         }
 
         if (args->param < ARRAY_SIZE(reg_map) && reg_map[args->param]) {