diff --git a/rtic-sync/src/channel.rs b/rtic-sync/src/channel.rs
index 64c5ac9dc634..f37bad56e796 100644
--- a/rtic-sync/src/channel.rs
+++ b/rtic-sync/src/channel.rs
@@ -84,7 +84,7 @@ impl<T, const N: usize> Channel<T, N> {
     /// Create a new channel.
     #[cfg(not(loom))]
     pub const fn new() -> Self {
-        Self::size_check();
+        const { Self::size_check() };
         Self {
             freeq: UnsafeCell::new(Deque::new()),
             readyq: UnsafeCell::new(Deque::new()),
@@ -99,7 +99,7 @@ impl<T, const N: usize> Channel<T, N> {
     /// Create a new channel.
     #[cfg(loom)]
     pub fn new() -> Self {
-        Self::size_check();
+        const { Self::size_check() };
         Self {
             freeq: UnsafeCell::new(Deque::new()),
             readyq: UnsafeCell::new(Deque::new()),