diff --git a/dev/archery/archery/integration/tester_java.py b/dev/archery/archery/integration/tester_java.py
index dea642fa9c2e4..83dab4914b9d3 100644
--- a/dev/archery/archery/integration/tester_java.py
+++ b/dev/archery/archery/integration/tester_java.py
@@ -258,7 +258,7 @@ def __init__(self, *args, **kwargs):
             # Java 9+
             self._java_opts.append(
                 '--add-opens=java.base/java.nio='
-                'org.apache.arrow.memory.core,ALL-UNNAMED'
+                'org.apache.arrow.memory.core,ALL-UNNAMED '
                 '--add-reads=org.apache.arrow.flight.core=ALL-UNNAMED')
 
     def _run(self, arrow_path=None, json_path=None, command='VALIDATE'):