diff --git a/cglue/src/trait_group.rs b/cglue/src/trait_group.rs
index 9a58a6c..b43457b 100644
--- a/cglue/src/trait_group.rs
+++ b/cglue/src/trait_group.rs
@@ -15,7 +15,6 @@ pub type c_void = ();
 #[cfg(not(any(feature = "rust_void", miri)))]
 #[allow(non_camel_case_types)]
 #[repr(transparent)]
-#[derive(Debug)]
 #[cfg_attr(feature = "abi_stable", derive(::abi_stable::StableAbi))]
 #[cfg_attr(feature = "abi_stable", sabi(unsafe_opaque_fields))]
 pub struct c_void(core::ffi::c_void);