diff --git a/flickity/flickity-tests.ts b/flickity/flickity-tests.ts
index 8d06e4ee7f..4f155f3e17 100644
--- a/flickity/flickity-tests.ts
+++ b/flickity/flickity-tests.ts
@@ -30,7 +30,7 @@
         percentPosition: false,
         prevNextButtons: false,
         selectedAttraction: 0.050,
-        useSetGallerySize: true,
+        setGallerySize: true,
         watchCSS: true,
         wrapAround: true,
         resize: true,
@@ -64,7 +64,7 @@
             percentPosition: false,
             prevNextButtons: false,
             selectedAttraction: 0.050,
-            useSetGallerySize: true,
+            setGallerySize: true,
             watchCSS: true,
             wrapAround: true,
             resize: true,
diff --git a/flickity/flickity.d.ts b/flickity/flickity.d.ts
index bf4541e5ff..febb09b525 100644
--- a/flickity/flickity.d.ts
+++ b/flickity/flickity.d.ts
@@ -269,7 +269,7 @@ interface FlickityOptions {
     *
     * default: true
     */
-    useSetGallerySize?: boolean;
+    setGallerySize?: boolean;
 
     /**
     * Adjusts sizes and positions when window is resized.