diff --git a/Makefile.config b/Makefile.config
index 0610e647..7c53838e 100644
--- a/Makefile.config
+++ b/Makefile.config
@@ -140,20 +140,30 @@ PRE       = norm
 PRE_SRC   = spm${SRCBPESIZE:000=}k
 PRE_TRG   = spm${TRGBPESIZE:000=}k
 
+
 ##-------------------------------------
+## default name of the data set (and the model)
+##-------------------------------------
+
+ifndef DATASET
+  DATASET = opus
+endif
+
+##-------------------------------------
+## OLD OLD OLD
 ## name of the data set (and the model)
 ##  - single corpus = use that name
 ##  - multiple corpora = opus
 ## add also vocab size to the name
 ##-------------------------------------
 
-ifndef DATASET
-ifeq (${words ${TRAINSET}},1)
-  DATASET = ${TRAINSET}
-else
-  DATASET = opus
-endif
-endif
+# ifndef DATASET
+# ifeq (${words ${TRAINSET}},1)
+#   DATASET = ${TRAINSET}
+# else
+#   DATASET = opus
+# endif
+# endif