diff --git a/tests/qos/files/dynamic_buffer_param.json b/tests/qos/files/dynamic_buffer_param.json
index c5274424755..486a929470e 100644
--- a/tests/qos/files/dynamic_buffer_param.json
+++ b/tests/qos/files/dynamic_buffer_param.json
@@ -51,6 +51,7 @@
 		"x86_64-mlnx_msn4700-r0": "400000",
 		"x86_64-mlnx_msn4700_simx-r0": "400000",
 		"x86_64-nvidia_sn4280_simx-r0": "400000",
+		"x86_64-nvidia_sn4280-r0": "400000",
 		"x86_64-nvidia_sn4800-r0": "400000",
 		"x86_64-nvidia_sn4800_simx-r0": "400000",
 		"x86_64-nvidia_sn5600-r0": "800000",