1 files changed, 1 insertions, 0 deletions

diff --git a/c/data.h b/c/data.h
index dd443b9..c799e52 100644
--- a/c/data.h
+++ b/c/data.h
@@ -2,6 +2,7 @@
 #define DATA_H
 
 #include <stdexcept>
+#include <windows.h>
 
 #include "pl.h"
 #include "util.h"