diff --git a/std/package.d b/std/package.d
index ad3f97894b3..a1d04444d62 100644
--- a/std/package.d
+++ b/std/package.d
@@ -69,6 +69,7 @@ public import
  std.stdint,
  std.stdio,
  std.string,
+ std.sumtype,
  std.system,
  std.traits,
  std.typecons,