diff --git a/scripts/install.py b/scripts/install.py
index ea32f0b8aabd898d809d5a65f14de2acd55d3581..9f7945264ddc03b1435cb87d66650f369a0c000b 100755
--- a/scripts/install.py
+++ b/scripts/install.py
@@ -880,10 +880,18 @@ def main():
     # Handle the queries for information
     #
     if options.list_installed:
-        print "installed list:", installer.list_installed()
+        print "installed list:"
+        inst = installer.list_installed()
+        inst.sort()
+        for i in inst:
+            print ' ', i
         return 0
     if options.list_installables:
-        print "installable list:", installer.list_installables()
+        print "installable list:",
+        inst = installer.list_installables()
+        inst.sort()
+        for i in inst:
+            print ' ', i
         return 0
     if options.detail_installable:
         try: