diff --git a/lib/url.c b/lib/url.c
index da832e3396..54fed348b0 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -60,7 +60,9 @@
 #endif
 
 #if defined(HAVE_IF_NAMETOINDEX) && defined(_WIN32)
-#include <winsock2.h>
+#if __MINGW64_VERSION_MAJOR <= 5
+#include <wincrypt.h>  /* to avoid a mingw-w64 header issue */
+#endif
 #include <iphlpapi.h>
 #endif