diff --git a/libfprint/drivers/egismoc/egis_etu905.c b/libfprint/drivers/egismoc/egis_etu905.c
index b2a04675..946ca88d 100644
--- a/libfprint/drivers/egismoc/egis_etu905.c
+++ b/libfprint/drivers/egismoc/egis_etu905.c
@@ -903,16 +903,15 @@ egis_etu905_enroll_begin_cb (FpDevice *device,
     }
 
   FpiByteReader reader;
-  gboolean read = TRUE;
 
   fpi_byte_reader_init (&reader, buffer_in, length_in);
 
-  read &= fpi_byte_reader_set_pos (&reader, EGIS_ETU905_LIST_RESPONSE_PREFIX_SIZE);
+  fpi_byte_reader_set_pos (&reader, EGIS_ETU905_LIST_RESPONSE_PREFIX_SIZE);
 
   const guint8 *data = NULL;
 
-  read &= fpi_byte_reader_get_data (&reader, EGIS_ETU905_FINGERPRINT_DATA_SIZE,
-                                    &data);
+  fpi_byte_reader_get_data (&reader, EGIS_ETU905_FINGERPRINT_DATA_SIZE,
+                            &data);
 
   memcpy (self->sid, data, EGIS_ETU905_FINGERPRINT_DATA_SIZE);