diff --git a/gmtsph-global.sh b/gmtsph-global.sh
index 9f03ee7..9643082 100755
--- a/gmtsph-global.sh
+++ b/gmtsph-global.sh
@@ -23,7 +23,7 @@ do
 		h)
 			dispTitle "${0##*/}" "simple global wide data mapping using GMT script. The template accepts a grid (.nc .grid) file as input and outputs a .png and a .eps file. \
 For futher explanations, please look for GMT's manuscripts."
-			dispAuthorInfo "Author: Yi Zhang (zhangyi.cugwuhan@gmail.com)"
+			dispAuthorInfo "Yi Zhang (zhangyi.cugwuhan@gmail.com)"
 			dispUsage "${0##*/} -i<grid-data> [-r<xmin>/<xmax>/<ymin>/<ymax>] [-l<lon>] [-u<unit>] [-c<cpt-file>] [-a<x-label>,<y-label>] [-g] [-G<grad-data>] [-p<polygon-file>]"
 			dispOptionShort "-i" "input grid file"
 			dispOptionShort "-r" "data range. The template will ditect the input data range automaticly, the use of this option will overwrite the range."