diff --git a/lib/jt65code.f90 b/lib/jt65code.f90
index 19a0c937e..9d528907d 100644
--- a/lib/jt65code.f90
+++ b/lib/jt65code.f90
@@ -10,7 +10,8 @@ program JT65code
 
   nargs=iargc()
   if(nargs.ne.1) then
-     print*,'Usage: JT65code "message"'
+     print*,'Usage: jt65code "message"'
+     print*,'       jt65code -t'
      go to 999
   endif
 
diff --git a/lib/jt9code.f90 b/lib/jt9code.f90
index ec2c128ae..4a1f1fba0 100644
--- a/lib/jt9code.f90
+++ b/lib/jt9code.f90
@@ -10,6 +10,7 @@ program jt9code
   nargs=iargc()
   if(nargs.ne.1) then
      print*,'Usage: jt9code "message"'
+     print*,'       jt9code -t'
      go to 999
   endif