diff --git a/packages/reffuse/src/Reffuse.ts b/packages/reffuse/src/Reffuse.ts
index c1cd16f..5ed64cf 100644
--- a/packages/reffuse/src/Reffuse.ts
+++ b/packages/reffuse/src/Reffuse.ts
@@ -373,8 +373,8 @@ export class Reffuse<R> {
         )), [ref])
 
         const setValue = React.useCallback((setStateAction: React.SetStateAction<A>) =>
-            runSync(Ref.update(ref, previousState =>
-                SetStateAction.value(setStateAction, previousState)
+            runSync(Ref.update(ref, prevState =>
+                SetStateAction.value(setStateAction, prevState)
             )),
         [ref])