diff --git a/.changeset/nervous-houses-explain.md b/.changeset/nervous-houses-explain.md
new file mode 100644
index 0000000000..e8fe776d26
--- /dev/null
+++ b/.changeset/nervous-houses-explain.md
@@ -0,0 +1,5 @@
+---
+"effect": patch
+---
+
+fix discard option in Effect.all
diff --git a/packages/effect/src/internal/fiberRuntime.ts b/packages/effect/src/internal/fiberRuntime.ts
index 96d204ae60..fef56bbe98 100644
--- a/packages/effect/src/internal/fiberRuntime.ts
+++ b/packages/effect/src/internal/fiberRuntime.ts
@@ -1826,7 +1826,7 @@ export const all = <
     return allEither(effects, reconcile, options) as any
   }
 
-  return reconcile._tag === "Some"
+  return options?.discard !== true && reconcile._tag === "Some"
     ? core.map(
       forEach(effects, identity, options as any),
       reconcile.value