diff --git a/exercises/rational-numbers/canonical-data.json b/exercises/rational-numbers/canonical-data.json
index 389b1880ee..058d8aa1d3 100644
--- a/exercises/rational-numbers/canonical-data.json
+++ b/exercises/rational-numbers/canonical-data.json
@@ -403,7 +403,7 @@
         },
         {
           "uuid": "da137f1c-fc94-4035-9813-94f5152a1102",
-          "description": "Raise a negative real number to a rational number",
+          "description": "Raise a negative real number to a rational number that has been reduced",
           "property": "expreal",
           "input": {
             "x": -1,
@@ -411,6 +411,16 @@
           },
           "expected": -1.0
         },
+        {
+          "uuid": "da137f1c-fc94-4035-9813-94f5152a1102",
+          "description": "Raise a negative real number to a rational number that has not been reduced",
+          "property": "expreal",
+          "input": {
+            "x": -1,
+            "r": [2, 2]
+          },
+          "expected": -1.0
+        },
         {
           "uuid": "f3734f78-91b2-4e59-905e-8c61dbf34f39",
           "description": "Fails with a negative real number if the denominator of the reduced rational number is even",