From 032b0f4bac9d9d7ea9820b774d4a9124ae46e33b Mon Sep 17 00:00:00 2001
From: TheRawMeatball <therawmeatball@gmail.com>
Date: Mon, 4 Apr 2022 19:22:28 +0000
Subject: [PATCH] Fix derive(SystemParam) macro (#4400)

Fixes the issue seen in #4398
---
 crates/bevy_ecs/macros/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/bevy_ecs/macros/src/lib.rs b/crates/bevy_ecs/macros/src/lib.rs
index 8f5a4b9bb6..c0dfb21199 100644
--- a/crates/bevy_ecs/macros/src/lib.rs
+++ b/crates/bevy_ecs/macros/src/lib.rs
@@ -380,7 +380,7 @@ pub fn derive_system_param(input: TokenStream) -> TokenStream {
             marker: std::marker::PhantomData<fn()->(#punctuated_generic_idents)>
         }
 
-        unsafe impl<TSystemParamState: #path::system::SystemParamState, #punctuated_generics> #path::system::SystemParamState for #fetch_struct_name<TSystemParamState, #punctuated_generic_idents> {
+        unsafe impl<TSystemParamState: #path::system::SystemParamState, #punctuated_generics> #path::system::SystemParamState for #fetch_struct_name<TSystemParamState, #punctuated_generic_idents> #where_clause {
             fn init(world: &mut #path::world::World, system_meta: &mut #path::system::SystemMeta) -> Self {
                 Self {
                     state: TSystemParamState::init(world, system_meta),