diff --git a/data b/data
index 598255d..b3d65a1 160000
--- a/data
+++ b/data
@@ -1 +1 @@
-Subproject commit 598255d4a363b789e6532d04f1153a4b16c8bc18
+Subproject commit b3d65a11f52a536f0f1b0b40aee92bb9a8984254
diff --git a/train.sh b/train.sh
index 0b15370..2e084d2 100755
--- a/train.sh
+++ b/train.sh
@@ -48,7 +48,7 @@ fi
 
 export PYTHONUNBUFFERED=1  # For python + tee
 
-training_id=`date -Iminutes`
+training_id=`date -Iminutes | sed 's/:/_/g'`
 outdir=$DATA_SUBDIR/calamari-models/GT4HistOCR/$training_id
 mkdir -p $outdir