diff --git a/arraylist.h b/arraylist.h
index a0d767e..2e5a86b 100644
--- a/arraylist.h
+++ b/arraylist.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#define ARRAY_LIST_DEFAULT_SIZE 32
+#define ARRAY_LIST_DEFAULT_SIZE 16
 
 typedef void (array_list_free_fn) (void *data);
 
diff --git a/json_object_private.h b/json_object_private.h
index 4c6681a..83af9f6 100644
--- a/json_object_private.h
+++ b/json_object_private.h
@@ -20,7 +20,7 @@
 extern "C" {
 #endif
 
-#define LEN_DIRECT_STRING_DATA 32 /**< how many bytes are directly stored in json_object for strings? */
+#define LEN_DIRECT_STRING_DATA 16 /**< how many bytes are directly stored in json_object for strings? */
 
 typedef void (json_object_private_delete_fn)(struct json_object *o);