diff --git a/gtsam/base/serializationTestHelpers.h b/gtsam/base/serializationTestHelpers.h
index b6593bd9f..3f9b4ce5e 100644
--- a/gtsam/base/serializationTestHelpers.h
+++ b/gtsam/base/serializationTestHelpers.h
@@ -49,15 +49,15 @@ bool equality(const T& input = T()) {
   return input==output;
 }
 
-// This version requires equals
+// This version requires Testable
 template<class T>
 bool equalsObj(const T& input = T()) {
   T output;
   roundtrip<T>(input,output);
-  return input.equals(output);
+  return traits<T>::Equals(input, output);
 }
 
-// De-referenced version for pointers
+// De-referenced version for pointers, requires equals method
 template<class T>
 bool equalsDereferenced(const T& input) {
   T output;
@@ -84,15 +84,15 @@ bool equalityXML(const T& input = T()) {
   return input==output;
 }
 
-// This version requires equals
+// This version requires Testable
 template<class T>
 bool equalsXML(const T& input = T()) {
   T output;
   roundtripXML<T>(input,output);
-  return input.equals(output);
+  return traits<T>::Equals(input, output);
 }
 
-// This version is for pointers
+// This version is for pointers, requires equals method
 template<class T>
 bool equalsDereferencedXML(const T& input = T()) {
   T output;
@@ -119,15 +119,15 @@ bool equalityBinary(const T& input = T()) {
   return input==output;
 }
 
-// This version requires equals
+// This version requires Testable
 template<class T>
 bool equalsBinary(const T& input = T()) {
   T output;
   roundtripBinary<T>(input,output);
-  return input.equals(output);
+  return traits<T>::Equals(input, output);
 }
 
-// This version is for pointers
+// This version is for pointers, requires equals method
 template<class T>
 bool equalsDereferencedBinary(const T& input = T()) {
   T output;