diff --git a/runtests.sh b/runtests.sh
index b54f600..addf7d4 100755
--- a/runtests.sh
+++ b/runtests.sh
@@ -19,13 +19,13 @@ set -e
 set -u
 
 # process our test scripts
-if [ $1 == 'All' ]; then
+if [ $1 ]; then
+  t_Process tests/$1
+else
   t_Process <(/usr/bin/find ./tests/0_*/ -type f|sort -t'/' )
   t_Process <(/usr/bin/find ./tests/p_*/ -type f|sort -t'/' )
   t_Process <(/usr/bin/find ./tests/r_*/ -type f|sort -t'/' )
   t_Process <(/usr/bin/find ./tests/z_*/ -type f|sort -t'/' )
-else
-  t_Process tests/$1
 fi
 
 # and, we're done.