diff --git a/translate_mapsize_386.go b/translate_mapsize_386.go
index b8beafa13..259b735ac 100644
--- a/translate_mapsize_386.go
+++ b/translate_mapsize_386.go
@@ -1,5 +1,5 @@
 package pilosa
 
-// DefaultMapSize is the default size of mapped memory for the translate store.
+// defaultMapSize is the default size of mapped memory for the translate store.
 // It is passed as an int to syscall.Mmap and so must be < 2^31
-const DefaultMapSize = (1 << 31) - 1 // 2GB
+const defaultMapSize = (1 << 31) - 1 // 2GB