diff --git a/runtime/bin/snapshot_empty.cc b/runtime/bin/snapshot_empty.cc
index f2eef2f8f39..6fc5b9f67bd 100644
--- a/runtime/bin/snapshot_empty.cc
+++ b/runtime/bin/snapshot_empty.cc
@@ -17,7 +17,7 @@ namespace dart {
 namespace bin {
 
 const uint8_t* vm_isolate_snapshot_buffer = NULL;
-const uint8_t* core_isolate_snapshot_buffer = NULL;
+const uint8_t* const core_isolate_snapshot_buffer = NULL;
 
 }  // namespace bin
 }  // namespace dart