diff --git a/Userland/Libraries/LibJS/Runtime/Promise.cpp b/Userland/Libraries/LibJS/Runtime/Promise.cpp
index cda7c4de4df..dc2a79a26f6 100644
--- a/Userland/Libraries/LibJS/Runtime/Promise.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Promise.cpp
@@ -19,16 +19,16 @@
 namespace JS {
 
 // 27.2.4.7.1 PromiseResolve ( C, x ), https://tc39.es/ecma262/#sec-promise-resolve
-Object* promise_resolve(GlobalObject& global_object, Object& constructor, Value value)
+ThrowCompletionOr<Object*> promise_resolve(GlobalObject& global_object, Object& constructor, Value value)
 {
     auto& vm = global_object.vm();
     if (value.is_object() && is<Promise>(value.as_object())) {
-        auto value_constructor = TRY_OR_DISCARD(value.as_object().get(vm.names.constructor));
+        auto value_constructor = TRY(value.as_object().get(vm.names.constructor));
         if (same_value(value_constructor, &constructor))
             return &static_cast<Promise&>(value.as_object());
     }
-    auto promise_capability = TRY_OR_DISCARD(new_promise_capability(global_object, &constructor));
-    [[maybe_unused]] auto result = TRY_OR_DISCARD(vm.call(*promise_capability.resolve, js_undefined(), value));
+    auto promise_capability = TRY(new_promise_capability(global_object, &constructor));
+    (void)TRY(vm.call(*promise_capability.resolve, js_undefined(), value));
     return promise_capability.promise;
 }
 
diff --git a/Userland/Libraries/LibJS/Runtime/Promise.h b/Userland/Libraries/LibJS/Runtime/Promise.h
index 0f1c927c789..60db733a96e 100644
--- a/Userland/Libraries/LibJS/Runtime/Promise.h
+++ b/Userland/Libraries/LibJS/Runtime/Promise.h
@@ -11,7 +11,7 @@
 
 namespace JS {
 
-Object* promise_resolve(GlobalObject&, Object& constructor, Value);
+ThrowCompletionOr<Object*> promise_resolve(GlobalObject&, Object& constructor, Value);
 
 class Promise final : public Object {
     JS_OBJECT(Promise, Object);
diff --git a/Userland/Libraries/LibJS/Runtime/PromiseConstructor.cpp b/Userland/Libraries/LibJS/Runtime/PromiseConstructor.cpp
index c0d231a5f0f..51407f1d8a1 100644
--- a/Userland/Libraries/LibJS/Runtime/PromiseConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/PromiseConstructor.cpp
@@ -357,7 +357,7 @@ JS_DEFINE_OLD_NATIVE_FUNCTION(PromiseConstructor::resolve)
 {
     auto* constructor = TRY_OR_DISCARD(vm.this_value(global_object).to_object(global_object));
     auto value = vm.argument(0);
-    return promise_resolve(global_object, *constructor, value);
+    return TRY_OR_DISCARD(promise_resolve(global_object, *constructor, value));
 }
 
 // 27.2.4.8 get Promise [ @@species ], https://tc39.es/ecma262/#sec-get-promise-@@species
diff --git a/Userland/Libraries/LibJS/Runtime/PromisePrototype.cpp b/Userland/Libraries/LibJS/Runtime/PromisePrototype.cpp
index 109deba9d2e..a0041bdee2d 100644
--- a/Userland/Libraries/LibJS/Runtime/PromisePrototype.cpp
+++ b/Userland/Libraries/LibJS/Runtime/PromisePrototype.cpp
@@ -72,9 +72,7 @@ JS_DEFINE_OLD_NATIVE_FUNCTION(PromisePrototype::finally)
             auto& on_finally = const_cast<FunctionObject&>(*on_finally_handle.cell());
             auto value = vm.argument(0);
             auto result = TRY(vm.call(on_finally, js_undefined()));
-            auto* promise = promise_resolve(global_object, constructor, result);
-            if (auto* exception = vm.exception())
-                return throw_completion(exception->value());
+            auto* promise = TRY(promise_resolve(global_object, constructor, result));
             auto* value_thunk = NativeFunction::create(global_object, "", [value](auto&, auto&) -> ThrowCompletionOr<Value> {
                 return value;
             });
@@ -88,9 +86,7 @@ JS_DEFINE_OLD_NATIVE_FUNCTION(PromisePrototype::finally)
             auto& on_finally = const_cast<FunctionObject&>(*on_finally_handle.cell());
             auto reason = vm.argument(0);
             auto result = TRY(vm.call(on_finally, js_undefined()));
-            auto* promise = promise_resolve(global_object, constructor, result);
-            if (auto* exception = vm.exception())
-                return throw_completion(exception->value());
+            auto* promise = TRY(promise_resolve(global_object, constructor, result));
             auto* thrower = NativeFunction::create(global_object, "", [reason](auto& vm, auto& global_object) -> ThrowCompletionOr<Value> {
                 vm.throw_exception(global_object, reason);
                 return throw_completion(reason);