diff --git a/src/pkg/runtime/callback_windows_386.c b/src/pkg/runtime/callback_windows_386.c
index fcd292fbcd..97df7c242f 100644
--- a/src/pkg/runtime/callback_windows_386.c
+++ b/src/pkg/runtime/callback_windows_386.c
@@ -4,6 +4,7 @@
 
 #include "runtime.h"
 #include "type.h"
+#include "typekind.h"
 #include "defs_GOOS_GOARCH.h"
 #include "os_GOOS.h"
 
diff --git a/src/pkg/runtime/callback_windows_amd64.c b/src/pkg/runtime/callback_windows_amd64.c
index 99d7cb9e38..0a2e53e6f5 100644
--- a/src/pkg/runtime/callback_windows_amd64.c
+++ b/src/pkg/runtime/callback_windows_amd64.c
@@ -4,6 +4,7 @@
 
 #include "runtime.h"
 #include "type.h"
+#include "typekind.h"
 #include "defs_GOOS_GOARCH.h"
 #include "os_GOOS.h"