diff --git a/include/sane/sane.h b/include/sane/sane.h
index 5bd3329fb..5320b4a5f 100644
--- a/include/sane/sane.h
+++ b/include/sane/sane.h
@@ -182,7 +182,7 @@ SANE_Frame;
 /* push remaining types down to match existing backends */
 /* these are to be exposed in a later version of SANE */
 /* most front-ends will require updates to understand them */
-#if 1
+#if 0
 #define SANE_FRAME_TEXT  0x0A  /* backend specific textual data */
 #define SANE_FRAME_JPEG  0x0B  /* complete baseline JPEG file */
 #define SANE_FRAME_G31D  0x0C  /* CCITT Group 3 1-D Compressed (MH) */