diff --git a/database.py b/database.py
index 391d65f..c3b8f4d 100644
--- a/database.py
+++ b/database.py
@@ -241,7 +241,7 @@ class Database(Profiler):
                              "the Ip4 cache is not necessary.")
         max_cache_width = int(math.log2(max(1, max_size*8)))
         allocated = False
-        cache_width = min(2**32, max_cache_width)
+        cache_width = min(32, max_cache_width)
         while not allocated:
             cache_size = 2**cache_width
             try: