diff --git a/mapbox-gl/index.d.ts b/mapbox-gl/index.d.ts
index 64e8b8e573..b7a9064f86 100644
--- a/mapbox-gl/index.d.ts
+++ b/mapbox-gl/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Mapbox GL JS v0.29.0
+// Type definitions for Mapbox GL JS v0.30.0
 // Project: https://github.com/mapbox/mapbox-gl-js
 // Definitions by: Dominik Bruderer <https://github.com/dobrud>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
@@ -979,7 +979,7 @@ declare namespace mapboxgl {
 		"circle-pitch-scale"?: "map" | "viewport";
 		"circle-stroke-width"?: number | StyleFunction;
 		"circle-stroke-color"?: string | StyleFunction;
-		"circle-stroke-opactiy"?: number | StyleFunction;
+		"circle-stroke-opacity"?: number | StyleFunction;
 	}
 }