diff --git a/exercises/matrix/canonical-data.json b/exercises/matrix/canonical-data.json
index 95edd679f2..d8f6841fc4 100644
--- a/exercises/matrix/canonical-data.json
+++ b/exercises/matrix/canonical-data.json
@@ -60,7 +60,7 @@
       "description": "can extract column from non-square matrix with no corresponding row",
       "property": "column",
       "input": {
-        "string": "1 2 3 4\n 5 6 7 8\n 9 8 7 6",
+        "string": "1 2 3 4\n5 6 7 8\n9 8 7 6",
         "index": 4
       },
       "expected": [4, 8, 6]