diff --git a/include/libssh/priv.h b/include/libssh/priv.h
index 44806ab6..1c460f75 100644
--- a/include/libssh/priv.h
+++ b/include/libssh/priv.h
@@ -104,6 +104,7 @@
 
 # endif /* _MSC_VER */
 
+struct timeval;
 int gettimeofday(struct timeval *__p, void *__t);
 
 #else /* _WIN32 */