diff --git a/crates/spirv-std/src/arch/barrier.rs b/crates/spirv-std/src/arch/barrier.rs
index 56ac3c9c91..b93714b2f3 100644
--- a/crates/spirv-std/src/arch/barrier.rs
+++ b/crates/spirv-std/src/arch/barrier.rs
@@ -30,10 +30,11 @@ use crate::memory::{Scope, Semantics};
 #[spirv_std_macros::gpu_only]
 #[doc(alias = "OpControlBarrier")]
 #[inline]
+// FIXME(eddyb) use a `bitflags!` `Semantics` for `SEMANTICS`.
 pub unsafe fn control_barrier<
     const EXECUTION: Scope,
     const MEMORY: Scope,
-    const SEMANTICS: Semantics,
+    const SEMANTICS: u32,
 >() {
     asm! {
         "%u32 = OpTypeInt 32 0",
@@ -43,7 +44,7 @@ pub unsafe fn control_barrier<
         "OpControlBarrier %execution %memory %semantics",
         execution = const EXECUTION as u8,
         memory = const MEMORY as u8,
-        semantics = const SEMANTICS as u8,
+        semantics = const SEMANTICS,
     }
 }