diff --git a/README.md b/README.md
index a0f9d87de48c49d38c95fd9caa0156acae5f9e2c..e418b001dd2bd84573689abb5706ee24c93d72b5 100644
--- a/README.md
+++ b/README.md
@@ -112,7 +112,7 @@ On ````ml-100k````:
 
 On ````ml-25m````:
 ````
-    sbt "runMain predict.Baseline --train data/ml-25m/r2.train --test data/ml-25m/r2.test --json baseline-25m.json"
+    sbt "runMain predict.Baseline --train data/ml-25m/r2.train --test data/ml-25m/r2.test --separator , --json baseline-25m.json"
 ````
 
 ### Distributed Baseline