diff --git a/trunk/gpgme/data-stream.c b/trunk/gpgme/data-stream.c
index 18ad111d..629fb363 100644
--- a/trunk/gpgme/data-stream.c
+++ b/trunk/gpgme/data-stream.c
@@ -74,6 +74,7 @@ stream_seek (gpgme_data_t dh, off_t offset, int whence)
 static int
 stream_get_fd (gpgme_data_t dh)
 {
+  fflush (dh->data.stream);
   return fileno (dh->data.stream);
 }