diff --git a/include/libtorrent/aux_/session_impl.hpp b/include/libtorrent/aux_/session_impl.hpp
index 471c6c421..230720750 100644
--- a/include/libtorrent/aux_/session_impl.hpp
+++ b/include/libtorrent/aux_/session_impl.hpp
@@ -188,8 +188,8 @@ namespace libtorrent
 #ifdef TORRENT_DEBUG
 			bool is_network_thread() const
 			{
-				if (m_network_thread == 0) return true;
 #if defined BOOST_HAS_PTHREADS
+				if (m_network_thread == 0) return true;
 				return m_network_thread == pthread_self();
 #endif
 				return true;
diff --git a/src/file.cpp b/src/file.cpp
index 49890e61f..964036ca1 100644
--- a/src/file.cpp
+++ b/src/file.cpp
@@ -1067,7 +1067,7 @@ namespace libtorrent
 		{
 			for (int k = 0; k < int(i->iov_len); k += m_page_size)
 			{
-				cur_seg->Buffer = PtrToPtr64(((char*)i->iov_base) + k);
+				cur_seg->Buffer = PtrToPtr64((((char*)i->iov_base) + k));
 				++cur_seg;
 			}
 		}
@@ -1250,7 +1250,7 @@ namespace libtorrent
 		{
 			for (int k = 0; k < int(i->iov_len); k += m_page_size)
 			{
-				cur_seg->Buffer = PtrToPtr64(((char*)i->iov_base) + k);
+				cur_seg->Buffer = PtrToPtr64((((char*)i->iov_base) + k));
 				++cur_seg;
 			}
 		}