diff --git a/lib/Alembic/Ogawa/IStreams.cpp b/lib/Alembic/Ogawa/IStreams.cpp
index 3cb2d9a4..e64e12a2 100644
--- a/lib/Alembic/Ogawa/IStreams.cpp
+++ b/lib/Alembic/Ogawa/IStreams.cpp
@@ -182,7 +182,7 @@ class FileIStreamReader : public IStreamReader
     {
         struct __stat64 buf;
 
-        int err = _stat64(iFile, &buf);
+        int err = _fstat64(iFile, &buf);
         if (err < 0) return -1;
         if (buf.st_size < 0) return -1;