diff --git a/tests/qos/files/cisco/qos_param_generator.py b/tests/qos/files/cisco/qos_param_generator.py
index cde57c4d9ae..82e74f134fb 100644
--- a/tests/qos/files/cisco/qos_param_generator.py
+++ b/tests/qos/files/cisco/qos_param_generator.py
@@ -72,6 +72,9 @@ def __init__(self, qos_params, duthost, dutAsic, topo, bufferConfig, portSpeedCa
                 self.reduced_pause_thr = 3 * (1024 ** 2)
             else:
                 self.reduced_pause_thr = 2.25 * (1024 ** 2)
+            if dutAsic == "gr":
+                self.reduced_pause_thr = self.gr_get_hw_thr_buffs(self.reduced_pause_thr
+                                                                  // self.buffer_size) * self.buffer_size
             self.log("Max pause thr bytes:       {}".format(max_pause))
             self.log("Attempted pause thr bytes: {}".format(attempted_pause))
             self.log("Pre-pad pause thr bytes:   {}".format(pre_pad_pause))