diff --git a/tests/run-tests.sh b/tests/run-tests.sh
index 38054b0..418657c 100755
--- a/tests/run-tests.sh
+++ b/tests/run-tests.sh
@@ -2,7 +2,7 @@
 
 # run's all the available tests
 
-for test in */; do
+for test in $(find . -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -g); do
     if [ ! -x "${test}/run.sh" ]; then
         continue
     fi
diff --git a/tests/syncoid/run-tests.sh b/tests/syncoid/run-tests.sh
index a9843a5..5564667 100755
--- a/tests/syncoid/run-tests.sh
+++ b/tests/syncoid/run-tests.sh
@@ -2,7 +2,7 @@
 
 # run's all the available tests
 
-for test in */; do
+for test in $(find . -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -g); do
     if [ ! -x "${test}/run.sh" ]; then
         continue
     fi