1 files changed, 1 insertions, 4 deletions
diff --git a/ecs/src/system.rs b/ecs/src/system.rs
index f266095..992fd69 100644
--- a/ecs/src/system.rs
+++ b/ecs/src/system.rs
@@ -49,7 +49,7 @@ macro_rules! impl_system {
                 for Func
             where
                 Func: Fn(#(TParam~I,)*) + Copy + RefUnwindSafe + UnwindSafe + 'static,
-                #(TParam~I: Param<'world, Flags = NoInitParamFlag>,)*
+                #(TParam~I: Param<'world, Input = ()>,)*
             {
                 type Input = Infallible;
 
@@ -156,7 +156,6 @@ type TypeErasedRunFn = dyn Fn(&dyn Any, &World) + RefUnwindSafe + UnwindSafe;
 pub trait Param<'world>
 {
     type Input;
-    type Flags;
 
     fn initialize<SystemImpl>(
         system: &mut impl System<'world, SystemImpl>,
@@ -169,8 +168,6 @@ pub trait Param<'world>
     ) -> Self;
 }
 
-pub struct NoInitParamFlag {}
-
 /// A type which can be used as input to a [`System`].
 pub trait Input: 'static {}