diff --git a/ci/run_python_tests.sh b/ci/run_python_tests.sh
index ee3f34496..1b646d7f2 100755
--- a/ci/run_python_tests.sh
+++ b/ci/run_python_tests.sh
@@ -16,7 +16,7 @@ echo
 
 PYTHON_SUFFIX=""
 
-if [[ "$PYTHON_VER" == 3* ]]; then
+if [[ "$PYTHON_VERSION" == 3* ]]; then
     PYTHON_SUFFIX="3"
 fi