diff --git a/Regression/Checksum/benchmarks_json/collisionXYZ.json b/Regression/Checksum/benchmarks_json/collisionXYZ.json
index 927848745a8..6e4b9abf965 100644
--- a/Regression/Checksum/benchmarks_json/collisionXYZ.json
+++ b/Regression/Checksum/benchmarks_json/collisionXYZ.json
@@ -5,6 +5,8 @@
     "Bz": 0.0,
     "Ex": 0.0,
     "Ey": 0.0,
-    "Ez": 0.0
+    "Ez": 0.0,
+    "T_electron": 362230.52300397365,
+    "T_ion": 338312.83502136066
   }
 }