diff --git a/packages/svelte/src/internal/client/reactivity/sources.js b/packages/svelte/src/internal/client/reactivity/sources.js
index 66ef4a64e9..f2012e7065 100644
--- a/packages/svelte/src/internal/client/reactivity/sources.js
+++ b/packages/svelte/src/internal/client/reactivity/sources.js
@@ -6,7 +6,7 @@ import { CLEAN, SOURCE } from '../constants.js';
 /**
  * @template V
  * @param {V} initial_value
- * @returns {import('../types.js').Source<V>}
+ * @returns {import('./types.js').Source<V>}
  */
 /*#__NO_SIDE_EFFECTS__*/
 export function source(initial_value) {
@@ -16,7 +16,7 @@ export function source(initial_value) {
 /**
  * @template V
  * @param {V} initial_value
- * @returns {import('../types.js').Source<V>}
+ * @returns {import('./types.js').Source<V>}
  */
 /*#__NO_SIDE_EFFECTS__*/
 export function mutable_source(initial_value) {
@@ -36,7 +36,7 @@ export function mutable_source(initial_value) {
  * @template V
  * @param {import('../types.js').SignalFlags} flags
  * @param {V} value
- * @returns {import('../types.js').Source<V> | import('../types.js').Source<V> & import('../types.js').SourceDebug}
+ * @returns {import('./types.js').Source<V> | import('./types.js').Source<V> & import('./types.js').SourceDebug}
  */
 function create_source_signal(flags, value) {
 	if (DEV) {
diff --git a/packages/svelte/src/internal/client/reactivity/store.js b/packages/svelte/src/internal/client/reactivity/store.js
index 1014098819..5ffb4da2d1 100644
--- a/packages/svelte/src/internal/client/reactivity/store.js
+++ b/packages/svelte/src/internal/client/reactivity/store.js
@@ -50,7 +50,7 @@ export function store_get(store, store_name, stores) {
 /**
  * @template V
  * @param {import('../types.js').Store<V> | null | undefined} store
- * @param {import('../types.js').Source<V>} source
+ * @param {import('./types.js').Source<V>} source
  */
 function connect_store_to_signal(store, source) {
 	if (store == null) {
diff --git a/packages/svelte/src/internal/client/reactivity/types.d.ts b/packages/svelte/src/internal/client/reactivity/types.d.ts
new file mode 100644
index 0000000000..80f3eb756a
--- /dev/null
+++ b/packages/svelte/src/internal/client/reactivity/types.d.ts
@@ -0,0 +1,19 @@
+import type { Computation, EqualsFunctions, SignalFlags } from '../types';
+
+export type Source<V = unknown> = {
+	/** consumers: Signals that read from the current signal */
+	c: null | Computation[];
+	/** equals: For value equality */
+	e: null | EqualsFunctions;
+	/** flags: The types that the signal represent, as a bitwise value */
+	f: SignalFlags;
+	/** value: The latest value for this signal */
+	v: V;
+	// write version
+	w: number;
+};
+
+export type SourceDebug = {
+	/** This is DEV only */
+	inspect: Set<Function>;
+};
diff --git a/packages/svelte/src/internal/client/types.d.ts b/packages/svelte/src/internal/client/types.d.ts
index 59cf49e9d0..5130c7a2f6 100644
--- a/packages/svelte/src/internal/client/types.d.ts
+++ b/packages/svelte/src/internal/client/types.d.ts
@@ -1,4 +1,5 @@
 import { DERIVED, EFFECT, RENDER_EFFECT, SOURCE, PRE_EFFECT, STATE_SYMBOL } from './constants.js';
+import type { Source, SourceDebug } from './reactivity/types.js';
 
 // Put all internal types in this file. Once we convert to JSDoc, we can make this a d.ts file
 
@@ -55,24 +56,6 @@ export type ComponentContext = {
 // (effects and derived signals). Thus we can improve the memory profile at the slight cost
 // of some runtime performance.
 
-export type Source<V = unknown> = {
-	/** consumers: Signals that read from the current signal */
-	c: null | Computation[];
-	/** equals: For value equality */
-	e: null | EqualsFunctions;
-	/** flags: The types that the signal represent, as a bitwise value */
-	f: SignalFlags;
-	/** value: The latest value for this signal */
-	v: V;
-	// write version
-	w: number;
-};
-
-export type SourceDebug = {
-	/** This is DEV only */
-	inspect: Set<Function>;
-};
-
 export type Computation<V = unknown> = {
 	/** consumers: Signals that read from the current signal */
 	c: null | Computation[];