diff --git a/src/shogun/statistical_testing/internals/DataManager.cpp b/src/shogun/statistical_testing/internals/DataManager.cpp
index 9679bf8515a..135933c7750 100644
--- a/src/shogun/statistical_testing/internals/DataManager.cpp
+++ b/src/shogun/statistical_testing/internals/DataManager.cpp
@@ -281,8 +281,7 @@ void DataManager::set_train_test_ratio(float64_t ratio)
 		train_test_ratio=ratio;
 	else
 	{
-		SG_SERROR("Train-test ratio cannot be set without turning on Train/Test mode first!"
-		"Please call set_train_test_mode(True) before using this method!\n");
+		SG_SERROR("Train-test ratio cannot be set without turning on train-test mode first.\n");
 	}
 }