diff --git a/web/packages/core/src/polyfills.ts b/web/packages/core/src/polyfills.ts
index 9d44b14d8..f717f3098 100644
--- a/web/packages/core/src/polyfills.ts
+++ b/web/packages/core/src/polyfills.ts
@@ -42,7 +42,7 @@ function replace_flash_instances() {
 
         // Replace <object> first, because <object> often wraps <embed>.
         for (const elem of Array.from(objects)) {
-            if (RuffleObject.is_interdictable(elem)) {
+            if (RuffleObject.isInterdictable(elem)) {
                 const ruffle_obj = RuffleObject.from_native_object_element(
                     elem
                 );
diff --git a/web/packages/core/src/ruffle-object.ts b/web/packages/core/src/ruffle-object.ts
index c773df25f..c64e04366 100644
--- a/web/packages/core/src/ruffle-object.ts
+++ b/web/packages/core/src/ruffle-object.ts
@@ -172,7 +172,7 @@ export class RuffleObject extends RufflePlayer {
      * @param elem Element to check.
      * @return True if the element looks like a flash object.
      */
-    static is_interdictable(elem: HTMLElement): boolean {
+    static isInterdictable(elem: HTMLElement): boolean {
         const data = elem.attributes.getNamedItem("data")?.value.toLowerCase();
         if (!data) {
             let has_movie = false;