diff --git a/.changeset/young-doodles-beam.md b/.changeset/young-doodles-beam.md
new file mode 100644
index 0000000000..b68f55d241
--- /dev/null
+++ b/.changeset/young-doodles-beam.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: don't treat declaration tags as parts inside each blocks
diff --git a/packages/svelte/src/compiler/phases/3-transform/client/visitors/shared/utils.js b/packages/svelte/src/compiler/phases/3-transform/client/visitors/shared/utils.js
index 51c84dd01c..c305d53ea5 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/visitors/shared/utils.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/visitors/shared/utils.js
@@ -8,7 +8,7 @@ import { sanitize_template_string } from '../../../../../utils/sanitize_template
import { regex_is_valid_identifier } from '../../../../patterns.js';
import is_reference from 'is-reference';
import { dev, is_ignored, locator, component_name } from '../../../../../state.js';
-import { build_getter } from '../../utils.js';
+import { build_getter, is_state_source } from '../../utils.js';
import { ExpressionMetadata } from '../../../../nodes.js';
/**
@@ -272,6 +272,10 @@ export function build_bind_this(expression, value, { state, visit }) {
const binding = state.scope.get(node.name);
if (!binding) return;
+ // if it is a state or a derived it means is a declaration tag...in that case we don't want to pass the
+ // value but the signal itself or assignment will break
+ if (is_state_source(binding, state.analysis) || binding.kind === 'derived') return;
+
for (const [owner, scope] of state.scopes) {
if (owner.type === 'EachBlock' && scope === binding.scope) {
ids.push(node);
diff --git a/packages/svelte/tests/runtime-runes/samples/declaration-tags-each/_config.js b/packages/svelte/tests/runtime-runes/samples/declaration-tags-each/_config.js
new file mode 100644
index 0000000000..d5cdd103b5
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/declaration-tags-each/_config.js
@@ -0,0 +1,10 @@
+import { flushSync } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+ async test({ target, assert }) {
+ const [btn1, btn2] = target.querySelectorAll('button');
+ flushSync(() => btn2.click());
+ assert.equal(btn1.textContent, '1');
+ }
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/declaration-tags-each/main.svelte b/packages/svelte/tests/runtime-runes/samples/declaration-tags-each/main.svelte
new file mode 100644
index 0000000000..04d55913b4
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/declaration-tags-each/main.svelte
@@ -0,0 +1,6 @@
+{#each Array(1)}
+ {let ref = $state()}
+ {let count = $state(0)}
+
+
+{/each}
\ No newline at end of file