diff --git a/boring/src/srtp.rs b/boring/src/srtp.rs
index 4081868e..cbb56fbb 100644
--- a/boring/src/srtp.rs
+++ b/boring/src/srtp.rs
@@ -8,7 +8,6 @@ use std::str;
 /// fake free method, since SRTP_PROTECTION_PROFILE is static
 unsafe fn free(_profile: *mut ffi::SRTP_PROTECTION_PROFILE) {}
 
-#[allow(unused_unsafe)]
 foreign_type_and_impl_send_sync! {
     type CType = ffi::SRTP_PROTECTION_PROFILE;
     fn drop = free;