diff --git a/.changeset/seven-jobs-sniff.md b/.changeset/seven-jobs-sniff.md
new file mode 100644
index 0000000000..4faeced47b
--- /dev/null
+++ b/.changeset/seven-jobs-sniff.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: adjust `$inspect.with` type
diff --git a/packages/svelte/src/main/ambient.d.ts b/packages/svelte/src/main/ambient.d.ts
index 8b8eadf048..63b949de73 100644
--- a/packages/svelte/src/main/ambient.d.ts
+++ b/packages/svelte/src/main/ambient.d.ts
@@ -178,4 +178,4 @@ declare function $props<T>(): T;
  */
 declare function $inspect<T extends any[]>(
 	...values: T
-): { with: (type: 'init' | 'update', ...values: T) => void };
+): { with: (fn: (type: 'init' | 'update', ...values: T) => void) => void };
diff --git a/packages/svelte/types/index.d.ts b/packages/svelte/types/index.d.ts
index 72ec552cf8..9945df7735 100644
--- a/packages/svelte/types/index.d.ts
+++ b/packages/svelte/types/index.d.ts
@@ -2565,6 +2565,6 @@ declare function $props<T>(): T;
  */
 declare function $inspect<T extends any[]>(
 	...values: T
-): { with: (type: 'init' | 'update', ...values: T) => void };
+): { with: (fn: (type: 'init' | 'update', ...values: T) => void) => void };
 
 //# sourceMappingURL=index.d.ts.map
\ No newline at end of file