diff --git a/lib/active_graph/shared/persistence.rb b/lib/active_graph/shared/persistence.rb
index 131aca199..c661e443c 100644
--- a/lib/active_graph/shared/persistence.rb
+++ b/lib/active_graph/shared/persistence.rb
@@ -144,7 +144,7 @@ def destroyed?
 
     # @return [Hash] all defined and none nil properties
     def props
-      attributes.reject { |_, v| v.nil? }.symbolize_keys
+      attributes.compact.transform_keys(&:to_sym)
     end
 
     # @return true if the attributes hash has been frozen