diff --git a/scss/westgate/_responsive.scss b/scss/westgate/_responsive.scss
index 1c869f3..83d179e 100644
--- a/scss/westgate/_responsive.scss
+++ b/scss/westgate/_responsive.scss
@@ -29,6 +29,12 @@
 	.topic-list-header [component="category/controls"] {
 		width: 100%;
 	}
+
+	// keep the guest "Log in to post / reply" CTA on one line
+	[component="category/post/guest"],
+	[component="topic/reply/guest"] {
+		white-space: nowrap;
+	}
 }
 
 @include media-breakpoint-down(md) {