diff --git a/bin/run-superuser-tests b/bin/run-superuser-tests
index 9c65c41..9388581 100755
--- a/bin/run-superuser-tests
+++ b/bin/run-superuser-tests
@@ -16,7 +16,7 @@ run_test()
 ##
 # main
 if [ "$(id -u)" = "0" ]; then
-    rake clean clobber compile
+    bundle exec rake clean clobber compile
     rm -rf tmp/
     for file in test/superuser/*_test.rb; do
         logfile=".runner.log_$(basename ${file})"
diff --git a/bin/run-unprivileged-tests b/bin/run-unprivileged-tests
index ff4faa1..eca4ba3 100755
--- a/bin/run-unprivileged-tests
+++ b/bin/run-unprivileged-tests
@@ -16,7 +16,7 @@ run_test()
 ##
 # main
 if [ "$(id -u)" != "0" ]; then
-    rake clean clobber compile
+    bundle exec rake clean clobber compile
     for file in test/unprivileged/*_test.rb; do
         logfile=".runner.log_$(basename ${file})"
         if run_test "${file}" "${logfile}"; then