diff --git a/libs/spandsp/src/image_translate.c b/libs/spandsp/src/image_translate.c
index 32bed57138..e07421269a 100644
--- a/libs/spandsp/src/image_translate.c
+++ b/libs/spandsp/src/image_translate.c
@@ -433,6 +433,7 @@ static int image_resize_row(image_translate_state_t *s, uint8_t buf[])
 #endif
         }
         break;
+    case T4_IMAGE_TYPE_BILEVEL:
     case T4_IMAGE_TYPE_GRAY_8BIT:
         row8[0] = s->raw_pixel_row[0];
         row8[1] = s->raw_pixel_row[1];