diff --git a/art b/art
index c507e2c87..8552eb9d7 100755
--- a/art
+++ b/art
@@ -41,7 +41,7 @@ usage () {
     echo "        http://www.sanger.ac.uk/science/tools/artemis"
     echo   
     
-    exit 1
+    exit 0
 }
 
 add_proxy_properties() {
diff --git a/dnaplotter b/dnaplotter
index 6bc87f7ae..4484cca39 100755
--- a/dnaplotter
+++ b/dnaplotter
@@ -22,7 +22,7 @@ usage () {
     echo "        http://www.sanger.ac.uk/science/tools/dnaplotter/"
     echo   
     
-    exit 1
+    exit 0
 }
 
 add_proxy_properties() {