diff --git a/UD_any/launchBatches.py b/UD_any/launchBatches.py
index 2ee79cdfa6df44989b307f7d045e94e83cde9456..8355460b0a947a0e25e3e03c9ebe866ef775114d 100755
--- a/UD_any/launchBatches.py
+++ b/UD_any/launchBatches.py
@@ -67,6 +67,7 @@ def launchTrainSlurm(mode, expName, arguments, nbHours) :
 #SBATCH --job-name=train:{}
 #SBATCH --output={}.stdout
 #SBATCH --error={}.stderr
+#SBATCH --open-mode=append
 #SBATCH --ntasks=1
 #SBATCH --cpus-per-task=10
 #SBATCH --gres=gpu:1
@@ -130,6 +131,7 @@ def launchEvalSlurm(mode, expName, nbHours) :
 #SBATCH --job-name=eval:{}
 #SBATCH --output={}.stdout
 #SBATCH --error={}.stderr
+#SBATCH --open-mode=append
 #SBATCH --ntasks=1
 #SBATCH --cpus-per-task=10
 #SBATCH --gres=gpu:1