diff --git a/tests/test_pauli_op.cpp b/tests/test_pauli_op.cpp
index 8df6d60..9752d97 100644
--- a/tests/test_pauli_op.cpp
+++ b/tests/test_pauli_op.cpp
@@ -206,9 +206,11 @@ TEST_CASE("test apply multistate multistring identity") {
   for (size_t t = 0; t < n_states; ++t) {
     for (size_t i = 0; i < dims; ++i) {
       CHECK(abs(new_states(i, t) - states(i, t)) < 1e-6);
-      if (abs(new_states(i, t) - states(i, t)) > 1e-6)
-        fmt::println("new_states(i, t): {}, states(i, t): {}", new_states(i, t),
-                     states(i, t));
+      if (abs(new_states(i, t) - states(i, t)) > 1e-6) {
+        fmt::print("new_states(i, t): {}, states(i, t): {}", new_states(i, t),
+                   states(i, t));
+        fmt::println(" ratio {}", new_states(i, t) / states(i, t));
+      }
     }
   }
 }