diff --git a/src/mainboard/google/butterfly/romstage.c b/src/mainboard/google/butterfly/romstage.c
index 908b6d869e..6b7613a85b 100644
--- a/src/mainboard/google/butterfly/romstage.c
+++ b/src/mainboard/google/butterfly/romstage.c
@@ -119,33 +119,33 @@ void main(unsigned long bist)
 	int cbmem_was_initted;
 
 	struct pei_data pei_data = {
-		pei_version: PEI_VERSION,
-		mchbar: DEFAULT_MCHBAR,
-		dmibar: DEFAULT_DMIBAR,
-		epbar: DEFAULT_EPBAR,
-		pciexbar: CONFIG_MMCONF_BASE_ADDRESS,
-		smbusbar: SMBUS_IO_BASE,
-		wdbbar: 0x4000000,
-		wdbsize: 0x1000,
-		hpet_address: CONFIG_HPET_ADDRESS,
-		rcba: DEFAULT_RCBABASE,
-		pmbase: DEFAULT_PMBASE,
-		gpiobase: DEFAULT_GPIOBASE,
-		thermalbase: 0xfed08000,
-		system_type: 0, // 0 Mobile, 1 Desktop/Server
-		tseg_size: CONFIG_SMM_TSEG_SIZE,
-		spd_addresses: { 0xA0, 0x00,0xA4,0x00 },
-		ts_addresses: { 0x00, 0x00, 0x00, 0x00 },
-		ec_present: 1,
-		ddr3lv_support: 0,
+		.pei_version = PEI_VERSION,
+		.mchbar = DEFAULT_MCHBAR,
+		.dmibar = DEFAULT_DMIBAR,
+		.epbar = DEFAULT_EPBAR,
+		.pciexbar = CONFIG_MMCONF_BASE_ADDRESS,
+		.smbusbar = SMBUS_IO_BASE,
+		.wdbbar = 0x4000000,
+		.wdbsize = 0x1000,
+		.hpet_address = CONFIG_HPET_ADDRESS,
+		.rcba = DEFAULT_RCBABASE,
+		.pmbase = DEFAULT_PMBASE,
+		.gpiobase = DEFAULT_GPIOBASE,
+		.thermalbase = 0xfed08000,
+		.system_type = 0, // 0 Mobile, 1 Desktop/Server
+		.tseg_size = CONFIG_SMM_TSEG_SIZE,
+		.spd_addresses = { 0xA0, 0x00,0xA4,0x00 },
+		.ts_addresses = { 0x00, 0x00, 0x00, 0x00 },
+		.ec_present = 1,
+		.ddr3lv_support = 0,
 		// 0 = leave channel enabled
 		// 1 = disable dimm 0 on channel
 		// 2 = disable dimm 1 on channel
 		// 3 = disable dimm 0+1 on channel
-		dimm_channel0_disabled: 2,
-		dimm_channel1_disabled: 2,
-		max_ddr3_freq: 1600,
-		usb_port_config: {
+		.dimm_channel0_disabled = 2,
+		.dimm_channel1_disabled = 2,
+		.max_ddr3_freq = 1600,
+		.usb_port_config = {
 			 /* enabled   usb oc pin    length */
 			{ 1, 0, 0x0040 }, /* P0: Right USB 3.0 #1 (no OC) */
 			{ 1, 0, 0x0040 }, /* P1: Right USB 3.0 #2 (no OC) */
@@ -162,7 +162,7 @@ void main(unsigned long bist)
 			{ 0, 4, 0x0000 }, /* P12: Empty */
 			{ 0, 4, 0x0000 }, /* P13: Empty */
 		},
-		ddr_refresh_rate_config: 2, /* Force double refresh rate */
+		.ddr_refresh_rate_config = 2, /* Force double refresh rate */
 	};
 
 	timestamp_init(get_initial_timestamp());