diff --git a/platform/netenv.c b/platform/netenv.c
index 6126aa9..37a9eae 100644
--- a/platform/netenv.c
+++ b/platform/netenv.c
@@ -1,4 +1,5 @@
 #include <windows.h>
+#include <wincrypt.h>
 #include <iphlpapi.h>
 
 #include <stddef.h>