diff --git a/packages/block-library/src/buttons/style.scss b/packages/block-library/src/buttons/style.scss
index fa869b97904b5c..e88f271d8f41aa 100644
--- a/packages/block-library/src/buttons/style.scss
+++ b/packages/block-library/src/buttons/style.scss
@@ -3,11 +3,19 @@
 	display: inline-block;
 	margin-right: $grid-unit-10;
 	margin-bottom: $grid-unit-10;
+
+	&:last-child {
+		margin-right: 0;
+	}
 }
 
 .wp-block-buttons.alignright .wp-block-button {
 	margin-right: 0;
 	margin-left: $grid-unit-10;
+
+	&:first-child {
+		margin-left: 0;
+	}
 }
 
 .wp-block-buttons.aligncenter {