diff --git a/compiler/rustc_const_eval/src/interpret/call.rs b/compiler/rustc_const_eval/src/interpret/call.rs
index 97f7242b336f9..575d9a0096625 100644
--- a/compiler/rustc_const_eval/src/interpret/call.rs
+++ b/compiler/rustc_const_eval/src/interpret/call.rs
@@ -221,7 +221,6 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
         }
 
         // Fall back to exact equality.
-        // FIXME: We are missing the rules for "repr(C) wrapping compatible types".
         Ok(caller == callee)
     }