diff --git a/libretroshare/src/tor/TorManager.cpp b/libretroshare/src/tor/TorManager.cpp
index 9983d8c1f..a4bb04e4f 100644
--- a/libretroshare/src/tor/TorManager.cpp
+++ b/libretroshare/src/tor/TorManager.cpp
@@ -30,9 +30,14 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <syscall.h>
 #include <iostream>
 
+#if defined(_WIN32) || defined(__MINGW32__)
+#include <windows.h>
+#else
+#include <sys/syscall.h>
+#endif
+
 #include <QObject>
 
 #include "TorManager.h"