diff --git a/luisa_compute/src/runtime/kernel.rs b/luisa_compute/src/runtime/kernel.rs
index e0d90d2..c72a332 100644
--- a/luisa_compute/src/runtime/kernel.rs
+++ b/luisa_compute/src/runtime/kernel.rs
@@ -104,7 +104,7 @@ impl KernelParameter for rtx::AccelVar {
 }
 
 pub trait KernelParameter {
-    type Arg: KernelArg<Parameter = Self>;
+    type Arg: KernelArg<Parameter = Self> + 'static;
     fn def_param(builder: &mut KernelBuilder) -> Self;
 }