diff --git a/extensions/blocks/map/style.scss b/extensions/blocks/map/style.scss
index 8ff1d90dac6b8..953e48ee16e04 100644
--- a/extensions/blocks/map/style.scss
+++ b/extensions/blocks/map/style.scss
@@ -19,4 +19,8 @@
 		}
 		max-width: 300px;
 	}
+	.mapboxgl-ctrl-group button {
+		// Prevents theme styles adding a border radius to all buttons affecting the Map block controls too.
+		border-radius: 0;
+	}
 }