diff --git a/web/src/lib/components/repo/pulls/PullCommitListInterdiff.svelte b/web/src/lib/components/repo/pulls/PullCommitListInterdiff.svelte
index ff716c955..7b221016a 100644
--- a/web/src/lib/components/repo/pulls/PullCommitListInterdiff.svelte
+++ b/web/src/lib/components/repo/pulls/PullCommitListInterdiff.svelte
@@ -85,12 +85,12 @@
 					: ''}"
 		>
 			<button
-				class="relative size-10 {focusable ? 'cursor-pointer' : 'cursor-default'}"
+				class="relative w-10 inset-y-0 {focusable ? 'cursor-pointer' : 'cursor-default'}"
 				disabled={!focusable}
 				aria-label="Show changes in {commit.shortHash}"
 				onclick={focus}
 			>
-				<GraphCell band={band(i, listRange)} tail />
+				<GraphCell band={band(i, listRange)} tail class="absolute inset-y-0" />
 				<GraphCell
 					band={isSelected || selected < 0 ? "only" : "none"}
 					direction="horizontal"