diff --git a/plugins/sysinfo/win32/backend.c b/plugins/sysinfo/win32/backend.c
index 823775ac..ccaecc1f 100644
--- a/plugins/sysinfo/win32/backend.c
+++ b/plugins/sysinfo/win32/backend.c
@@ -11,6 +11,7 @@
 #define _WIN32_WINNT 0x0601
 #endif
 
+#include <winsock2.h>
 #include <windows.h>
 #include <winternl.h>
 #include <dxgi.h>