diff --git a/src/thread.rs b/src/thread.rs
index d73a87e..1a5785a 100644
--- a/src/thread.rs
+++ b/src/thread.rs
@@ -69,7 +69,7 @@ pub struct AsyncThread<A, R> {
 
 impl Thread {
     #[inline(always)]
-    const fn state(&self) -> *mut ffi::lua_State {
+    fn state(&self) -> *mut ffi::lua_State {
         self.1
     }