1 files changed, 1 insertions, 0 deletions
diff --git a/README b/README
index ff96a64..9a6c469 100644
--- a/README
+++ b/README
@@ -21,6 +21,7 @@ Requirements
 - fltk-1.1.x (http://www.fltk.org)
 - libtiff (http://www.remotesensing.org/libtiff/)
 - libjpeg (http://www.ijg.org/)
+- exif utility (http://libexif.sourceforge.net/)
 - ccmath library (http://freshmeat.net/projects/ccmath/)
 - gipfel works on UNIX-like system (e.g. Linux, *BSD and probably others)