diff --git a/include/blt/std/allocator.h b/include/blt/std/allocator.h
index 48bb4cf..4a7bc00 100644
--- a/include/blt/std/allocator.h
+++ b/include/blt/std/allocator.h
@@ -22,6 +22,7 @@
 #include <limits>
 #include <vector>
 #include <blt/std/utility.h>
+#include <blt/std/types.h>
 #include <stdexcept>
 #include "logging.h"