diff --git a/boards/ambiq/apollo4p_blue_kxr_evb/Kconfig.defconfig b/boards/ambiq/apollo4p_blue_kxr_evb/Kconfig.defconfig
index 63595ffddbd5..2bcd67ff17ca 100644
--- a/boards/ambiq/apollo4p_blue_kxr_evb/Kconfig.defconfig
+++ b/boards/ambiq/apollo4p_blue_kxr_evb/Kconfig.defconfig
@@ -19,6 +19,9 @@ config MAIN_STACK_SIZE
 config BT_BUF_ACL_TX_COUNT
 	default 14
 
+config BT_BUF_EVT_RX_COUNT
+	default 15
+
 config BT_BUF_CMD_TX_SIZE
 	default $(UINT8_MAX)