diff --git a/include/libssh/libssh.h b/include/libssh/libssh.h
index aff01909..33608f1d 100644
--- a/include/libssh/libssh.h
+++ b/include/libssh/libssh.h
@@ -58,6 +58,7 @@
 #else /* _MSC_VER */
   #include <unistd.h>
   #include <inttypes.h>
+  #include <sys/types.h>
 #endif /* _MSC_VER */
 
 #ifdef _WIN32