diff --git a/test/packetmath_test_shared.h b/test/packetmath_test_shared.h
index 709c4ae43..6fc489f47 100644
--- a/test/packetmath_test_shared.h
+++ b/test/packetmath_test_shared.h
@@ -90,6 +90,7 @@ template<typename Scalar> bool areApproxAbs(const Scalar* a, const Scalar* b, in
     if (!isApproxAbs(a[i],b[i],refvalue))
     {
       print_mismatch(a, b, size);
+      std::cout << "Values differ in position " << i << ": " << a[i] << " vs " << b[i] << std::endl;
       return false;
     }
   }
@@ -104,6 +105,7 @@ template<typename Scalar> bool areApprox(const Scalar* a, const Scalar* b, int s
          && !((numext::isnan)(a[i]) && (numext::isnan)(b[i])) )
     {
       print_mismatch(a, b, size);
+      std::cout << "Values differ in position " << i << ": " << a[i] << " vs " << b[i] << std::endl;
       return false;
     }
   }
@@ -117,6 +119,7 @@ template<typename Scalar> bool areEqual(const Scalar* a, const Scalar* b, int si
     if ( numext::not_equal_strict(a[i], b[i]) && !((numext::isnan)(a[i]) && (numext::isnan)(b[i])) )
     {
       print_mismatch(a, b, size);
+      std::cout << "Values differ in position " << i << ": " << a[i] << " vs " << b[i] << std::endl;
       return false;
     }
   }