diff --git a/test/test.service.in b/test/test.service.in
index 223df0399a..a2e60afa4d 100644
--- a/test/test.service.in
+++ b/test/test.service.in
@@ -10,3 +10,4 @@ ExecStart=@command@
 Type=oneshot
 MemoryAccounting=@memory-accounting@
 Environment=SYSTEMD_PAGER= @env@
+UnsetEnvironment=JOURNAL_STREAM