diff --git a/src/runtime/internal/Component.ts b/src/runtime/internal/Component.ts
index fba7f0faa7..3e48010547 100644
--- a/src/runtime/internal/Component.ts
+++ b/src/runtime/internal/Component.ts
@@ -177,7 +177,7 @@ export function init(component, options, instance, create_fragment, not_equal, p
 }
 
 export let SvelteElement;
-if (is_function(HTMLElement)) {
+if (typeof HTMLElement === 'function') {
 	SvelteElement = class extends HTMLElement {
 		$$: T$$;
 		$$set?: ($$props: any) => void;
diff --git a/src/runtime/internal/index.ts b/src/runtime/internal/index.ts
index e1dd2a1fcf..bae1f00804 100644
--- a/src/runtime/internal/index.ts
+++ b/src/runtime/internal/index.ts
@@ -13,3 +13,4 @@ export * from './transitions';
 export * from './utils';
 export * from './Component';
 export * from './dev';
+export * from './constants';
diff --git a/src/runtime/motion/spring.ts b/src/runtime/motion/spring.ts
index 19b8bdf170..58fa02c96f 100644
--- a/src/runtime/motion/spring.ts
+++ b/src/runtime/motion/spring.ts
@@ -1,7 +1,6 @@
 import { Readable, writable } from 'svelte/store';
-import { loop, now, Task } from 'svelte/internal';
+import { loop, now, Task, resolved_promise } from 'svelte/internal';
 import { is_date } from './utils';
-import { resolved_promise } from 'svelte/internal/constants';
 
 interface TickContext<T> {
 	inv_mass: number;
diff --git a/src/runtime/motion/tweened.ts b/src/runtime/motion/tweened.ts
index 4d62caf527..a63ae3d986 100644
--- a/src/runtime/motion/tweened.ts
+++ b/src/runtime/motion/tweened.ts
@@ -1,8 +1,7 @@
 import { Readable, writable } from 'svelte/store';
-import { assign, loop, now, Task, is_function } from 'svelte/internal';
+import { assign, loop, now, Task, is_function, resolved_promise } from 'svelte/internal';
 import { linear } from 'svelte/easing';
 import { is_date } from './utils';
-import { resolved_promise } from 'svelte/internal/constants';
 
 function get_interpolator(a, b) {
 	if (a === b || a !== a) return () => a;