diff --git a/parallel_hashmap/phmap.h b/parallel_hashmap/phmap.h
index 5c94ad5..2f49ec3 100644
--- a/parallel_hashmap/phmap.h
+++ b/parallel_hashmap/phmap.h
@@ -3538,7 +3538,7 @@ public:
     void reserve(size_t n) 
     {
         size_t target = GrowthToLowerboundCapacity(n);
-        size_t normalized = 16 * NormalizeCapacity(n / num_tables);
+        size_t normalized = num_tables * NormalizeCapacity(n / num_tables);
         rehash(normalized > target ? normalized : target); 
     }