diff --git a/lib/rackstash.rb b/lib/rackstash.rb
index 34b2780..e183c18 100644
--- a/lib/rackstash.rb
+++ b/lib/rackstash.rb
@@ -47,6 +47,10 @@ module Rackstash
   FIELD_TAGS = 'tags'.freeze
   FIELD_TIMESTAMP = '@timestamp'.freeze
   FIELD_VERSION = '@version'.freeze
+
+  # @!visibility private
+  # we want to look "native" with our inspect values, 7 for 32-bit, 14 for 64-bit
+  DEFAULT_OBJ_ID_STR_WIDTH = 0.size == 4 ? 7 : 14
 end
 
 require 'rackstash/logger'
diff --git a/lib/rackstash/fields/abstract_collection.rb b/lib/rackstash/fields/abstract_collection.rb
index 3a9d424..f897f80 100644
--- a/lib/rackstash/fields/abstract_collection.rb
+++ b/lib/rackstash/fields/abstract_collection.rb
@@ -12,10 +12,6 @@ require 'concurrent'
 module Rackstash
   module Fields
     class AbstractCollection
-      # @!visibility private
-      # we want to look "native", 7 for 32-bit, 14 for 64-bit
-      DEFAULT_OBJ_ID_STR_WIDTH = 0.size == 4 ? 7 : 14
-
       # Equality -- Two collections are equal if they are of exactly the same
       # class and contain the same raw data according to `Object#==`.
       #