diff --git a/transupp.c b/transupp.c
index 70e8c498..2537d872 100644
--- a/transupp.c
+++ b/transupp.c
@@ -1171,6 +1171,7 @@ transpose_critical_parameters (j_compress_ptr dstinfo)
 }
 
 
+#if JPEG_LIB_VERSION >= 70
 /* Adjust Exif image parameters.
  *
  * We try to adjust the Tags ExifImageWidth and ExifImageHeight if possible.
@@ -1325,6 +1326,7 @@ adjust_exif_parameters (JOCTET FAR * data, unsigned int length,
     offset += 12;
   } while (--number_of_tags);
 }
+#endif
 
 
 /* Adjust output image parameters as needed.