diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 01d6f9e5db51823798387e3140e11ff10f5533e0..88af6dd2ceaa4034e7dd167fad32fbb22fcc2fed 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -1615,7 +1615,7 @@ enum iwl_sf_scenario {
 #define SF_NUM_TIMEOUT_TYPES 2		/* Aging timer and Idle timer */
 
 /* smart FIFO default values */
-#define SF_W_MARK_SISO 4096
+#define SF_W_MARK_SISO 6144
 #define SF_W_MARK_MIMO2 8192
 #define SF_W_MARK_MIMO3 6144
 #define SF_W_MARK_LEGACY 4096