diff --git a/assets/js/blocks/checkout/inner-blocks/checkout-fields-block/style.scss b/assets/js/blocks/checkout/inner-blocks/checkout-fields-block/style.scss
index 81f2689ad14..10c860f3a15 100644
--- a/assets/js/blocks/checkout/inner-blocks/checkout-fields-block/style.scss
+++ b/assets/js/blocks/checkout/inner-blocks/checkout-fields-block/style.scss
@@ -18,11 +18,12 @@
 			display: flex;
 			flex-wrap: wrap;
 			justify-content: space-between;
+			gap: 0 calc(#{$gap-smaller} * 2);
 
 			.wc-block-components-text-input,
 			.wc-block-components-country-input,
 			.wc-block-components-state-input {
-				flex: 0 0 calc(50% - #{$gap-smaller});
+				flex: 1 0 calc(50% - #{$gap-smaller});
 				box-sizing: border-box;
 
 				&:nth-of-type(2),