diff --git a/.changeset/many-trainers-pretend.md b/.changeset/many-trainers-pretend.md
new file mode 100644
index 0000000000..207a88f306
--- /dev/null
+++ b/.changeset/many-trainers-pretend.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: check if svelte component exists on custom element destroy
diff --git a/packages/svelte/src/runtime/internal/Component.js b/packages/svelte/src/runtime/internal/Component.js
index e417176421..a0b0f58172 100644
--- a/packages/svelte/src/runtime/internal/Component.js
+++ b/packages/svelte/src/runtime/internal/Component.js
@@ -335,7 +335,7 @@ if (typeof HTMLElement === 'function') {
 			this.$$cn = false;
 			// In a microtask, because this could be a move within the DOM
 			Promise.resolve().then(() => {
-				if (!this.$$cn) {
+				if (!this.$$cn && this.$$c) {
 					this.$$c.$destroy();
 					this.$$c = undefined;
 				}