diff --git a/tools/driver_tests.py b/tools/driver_tests.py
index 8c18bf656..b03529fa5 100755
--- a/tools/driver_tests.py
+++ b/tools/driver_tests.py
@@ -87,11 +87,11 @@ def dbs(db, out):
     db.dbs_1.save({"foo": "bar"})
     db.dbs_2.save({"psi": "phi"})
     print >>out, db.name()
-    for name in sorted(db.collection_names()):
+    for name in [n for n in sorted(db.collection_names()) if n.startswith("dbs")]:
         print >>out, name
     db.drop_collection(db.dbs_1)
     db.create_collection("dbs_3")
-    for name in sorted(db.collection_names()):
+    for name in [n for n in sorted(db.collection_names()) if n.startswith("dbs")]:
         print >>out, name
 
 def main(test, out_file):