diff --git a/python/run-tests.py b/python/run-tests.py
index d7e690c4c663a..282fe5afa1963 100755
--- a/python/run-tests.py
+++ b/python/run-tests.py
@@ -87,9 +87,10 @@ def run_individual_python_test(target_dir, test_name, pyspark_python):
     env["TMPDIR"] = tmp_dir
 
     # Also override the JVM's temp directory by setting driver and executor options.
+    java_options = "-Djava.io.tmpdir={0} -Dio.netty.tryReflectionSetAccessible=true".format(tmp_dir)
     spark_args = [
-        "--conf", "spark.driver.extraJavaOptions='-Djava.io.tmpdir={0} -Dio.netty.tryReflectionSetAccessible=true'".format(tmp_dir),
-        "--conf", "spark.executor.extraJavaOptions='-Djava.io.tmpdir={0} -Dio.netty.tryReflectionSetAccessible=true'".format(tmp_dir),
+        "--conf", "spark.driver.extraJavaOptions='{0}'".format(java_options),
+        "--conf", "spark.executor.extraJavaOptions='{0}'".format(java_options),
         "pyspark-shell"
     ]
     env["PYSPARK_SUBMIT_ARGS"] = " ".join(spark_args)