diff --git a/anki/deck.py b/anki/deck.py
index a6989e2a2..27406738c 100644
--- a/anki/deck.py
+++ b/anki/deck.py
@@ -1716,7 +1716,7 @@ mapper(Deck, decksTable, properties={
 # Deck storage
 ##########################################################################
 
-numBackups = 100
+numBackups = 30
 
 # anki dir
 if sys.platform.startswith("darwin"):