diff --git a/run_tests.sh b/run_tests.sh
index a3be4117..cb885101 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 python -c 'import sys; print(sys.version_info[0])' | grep 3 &> /dev/null
-if [ $? == 0 ]; then
+if [ $? = 0 ]; then
     nosetests # don't run Django tests for Py3
 else
     nosetests && django-admin.py test --settings=billy.tests.django_settings --pythonpath=.