diff --git a/src/allmydata/test/check_memory.py b/src/allmydata/test/check_memory.py
index 31c66c8a0..83b25f84e 100644
--- a/src/allmydata/test/check_memory.py
+++ b/src/allmydata/test/check_memory.py
@@ -60,7 +60,7 @@ class ChildDidNotStartError(Exception):
     pass
 
 class SystemFramework(pollmixin.PollMixin):
-    numnodes = 5
+    numnodes = 7
 
     def __init__(self, basedir, mode):
         self.basedir = basedir = os.path.abspath(basedir)