diff --git a/libs/spandsp/src/t4_tx.c b/libs/spandsp/src/t4_tx.c
index acaf0eac46..47353b62ae 100644
--- a/libs/spandsp/src/t4_tx.c
+++ b/libs/spandsp/src/t4_tx.c
@@ -1869,7 +1869,6 @@ SPAN_DECLARE(int) t4_tx_set_tx_image_format(t4_tx_state_t *s,
             break;
         }
     }
-    res = T4_IMAGE_FORMAT_NOSIZESUPPORT;
     s->row_squashing_ratio = 1;
     if (s->metadata.width_code >= 0  &&  (supported_image_sizes & s->metadata.width_code))
     {