diff --git a/packages/svelte/src/internal/client/reactivity/sources.js b/packages/svelte/src/internal/client/reactivity/sources.js
index 5f2e631d6b..c28b677ad3 100644
--- a/packages/svelte/src/internal/client/reactivity/sources.js
+++ b/packages/svelte/src/internal/client/reactivity/sources.js
@@ -190,7 +190,7 @@ export function internal_set(source, value) {
 			is_runes() &&
 			active_effect !== null &&
 			(active_effect.f & CLEAN) !== 0 &&
-			(active_effect.f & (BRANCH_EFFECT | ROOT_EFFECT)) === 0
+			(active_effect.f & (BRANCH_EFFECT | ROOT_EFFECT | BLOCK_EFFECT)) === 0
 		) {
 			if (untracked_writes === null) {
 				set_untracked_writes([source]);
diff --git a/packages/svelte/tests/runtime-runes/samples/derived-dirty-after-read/main.svelte b/packages/svelte/tests/runtime-runes/samples/derived-dirty-after-read/main.svelte
index 423517718f..a898b909e1 100644
--- a/packages/svelte/tests/runtime-runes/samples/derived-dirty-after-read/main.svelte
+++ b/packages/svelte/tests/runtime-runes/samples/derived-dirty-after-read/main.svelte
@@ -11,7 +11,6 @@
 	});
 
 	let Thing = $derived.by(() => {
-		console.log("comp", config);
 		return config === "any" ? A : B;
 	});
 </script>