diff --git a/umac/regulatory/core/src/reg_build_chan_list.c b/umac/regulatory/core/src/reg_build_chan_list.c
index 8739fad8a4..1055339dbe 100644
--- a/umac/regulatory/core/src/reg_build_chan_list.c
+++ b/umac/regulatory/core/src/reg_build_chan_list.c
@@ -427,6 +427,37 @@ static void reg_find_high_limit_chan_enum(
 	}
 }
 
+#ifdef REG_DISABLE_JP_CH144
+/**
+ * reg_modify_chan_list_for_japan() - Disable channel 144 for MKK17_MKKC
+ * regdomain by default.
+ * @pdev: Pointer to pdev
+ *
+ * Return: None
+ */
+static void
+reg_modify_chan_list_for_japan(struct wlan_objmgr_pdev *pdev)
+{
+#define MKK17_MKKC 0xE1
+	struct wlan_regulatory_pdev_priv_obj *pdev_priv_obj;
+
+	pdev_priv_obj = reg_get_pdev_obj(pdev);
+	if (!IS_VALID_PDEV_REG_OBJ(pdev_priv_obj)) {
+		reg_err("reg pdev priv obj is NULL");
+		return;
+	}
+
+	if (pdev_priv_obj->reg_dmn_pair == MKK17_MKKC)
+		pdev_priv_obj->en_chan_144 = false;
+
+#undef MKK17_MKKC
+}
+#else
+static inline void
+reg_modify_chan_list_for_japan(struct wlan_objmgr_pdev *pdev)
+{
+}
+#endif
 /**
  * reg_modify_chan_list_for_freq_range() - Modify channel list for the given low
  * and high frequency range.
@@ -687,6 +718,7 @@ void reg_propagate_mas_chan_list_to_pdev(struct wlan_objmgr_psoc *psoc,
 			&psoc_priv_obj->mas_chan_params[pdev_id]);
 	psoc_reg_rules = &psoc_priv_obj->mas_chan_params[pdev_id].reg_rules;
 	reg_save_reg_rules_to_pdev(psoc_reg_rules, pdev_priv_obj);
+	reg_modify_chan_list_for_japan(pdev);
 	reg_compute_pdev_current_chan_list(pdev_priv_obj);
 
 	reg_tx_ops = reg_get_psoc_tx_ops(psoc);
diff --git a/umac/regulatory/core/src/reg_db.c b/umac/regulatory/core/src/reg_db.c
index be7cf479b9..558993f0bc 100644
--- a/umac/regulatory/core/src/reg_db.c
+++ b/umac/regulatory/core/src/reg_db.c
@@ -508,7 +508,7 @@ const struct country_code_to_reg_domain g_all_countries[] = {
 	{CTRY_WALLIS_AND_FUTUNA, ETSI1_WORLD, "WF", 40, 160, 0},
 	{CTRY_YEMEN, NULL1_WORLD, "YE", 40, 0, 0},
 	{CTRY_ZIMBABWE, ETSI1_WORLD, "ZW", 40, 160, 0},
-	{CTRY_JAPAN, MKK5_MKKC, "JP", 40, 160, 0},
+	{CTRY_JAPAN, MKK17_MKKC, "JP", 40, 160, 0},
 	{CTRY_JAPAN15, MKK5_MKKC, "JP", 40, 160, 0},
 };
 #else