diff --git a/runtime/lib/date.cc b/runtime/lib/date.cc
index 2570c987354..9a993428627 100644
--- a/runtime/lib/date.cc
+++ b/runtime/lib/date.cc
@@ -5,7 +5,6 @@
 #include "vm/bootstrap_natives.h"
 
 #include "vm/bigint_operations.h"
-#include "vm/exceptions.h"
 #include "vm/native_entry.h"
 #include "vm/object.h"
 #include "vm/os.h"
diff --git a/runtime/lib/isolate.cc b/runtime/lib/isolate.cc
index 926275c66eb..8f025e816a6 100644
--- a/runtime/lib/isolate.cc
+++ b/runtime/lib/isolate.cc
@@ -258,6 +258,7 @@ static char* BuildIsolateName(const char* script_name,
 DEFINE_NATIVE_ENTRY(IsolateNatives_start, 2) {
   Isolate* preserved_isolate = Isolate::Current();
   GET_NATIVE_ARGUMENT(Instance, runnable, arguments->At(0));
+  // arguments->At(1) unused.
   const Class& runnable_class = Class::Handle(runnable.clazz());
   const char* class_name = String::Handle(runnable_class.Name()).ToCString();
   const Library& library = Library::Handle(runnable_class.library());
diff --git a/runtime/vm/native_entry.h b/runtime/vm/native_entry.h
index 1fe7aba1800..f2e9e682b48 100644
--- a/runtime/vm/native_entry.h
+++ b/runtime/vm/native_entry.h
@@ -7,6 +7,7 @@
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
+#include "vm/exceptions.h"
 #include "vm/native_arguments.h"
 #include "vm/verifier.h"