diff --git a/support/annotations.h b/support/annotations.h
index 522164bb8..eee0e0a40 100644
--- a/support/annotations.h
+++ b/support/annotations.h
@@ -7,6 +7,8 @@
 
 #include "support/annotations_internal.h"
 
+// LINT.IfChange
+
 // Marks a function or type as requiring Rust binding.
 //
 // If Crubit fails to generate bindings for a function or type annotated with
@@ -386,4 +388,6 @@
 #define CRUBIT_OVERRIDE_DISPLAY(should_bind) \
   CRUBIT_INTERNAL_ANNOTATE("crubit_override_display", should_bind)
 
+// LINT.ThenChange(//depot/support/annotations.swig)
+
 #endif  // THIRD_PARTY_CRUBIT_SUPPORT_ANNOTATIONS_H_
diff --git a/support/annotations.swig b/support/annotations.swig
index 3f7153541..0eb9a6ddd 100644
--- a/support/annotations.swig
+++ b/support/annotations.swig
@@ -6,6 +6,8 @@
 %enddef
 %define CRUBIT_UNSAFE
 %enddef
+%define CRUBIT_UNSAFE_IMPL(...)
+%enddef
 %define CRUBIT_UNSAFE_MARK_SAFE
 %enddef
 %define CRUBIT_OVERRIDE_UNSAFE(safety)