diff --git a/cartiflette/mapshaper/mapshaper_split.py b/cartiflette/mapshaper/mapshaper_split.py
index 1f848490..aa49950f 100644
--- a/cartiflette/mapshaper/mapshaper_split.py
+++ b/cartiflette/mapshaper/mapshaper_split.py
@@ -166,3 +166,5 @@ def mapshaperize_split_merge(
         cmd,
         shell=True
     )
+
+    return output_path
diff --git a/cartiflette/pipeline/mapshaper_split_from_s3.py b/cartiflette/pipeline/mapshaper_split_from_s3.py
index 7c66eb6b..56a7066c 100644
--- a/cartiflette/pipeline/mapshaper_split_from_s3.py
+++ b/cartiflette/pipeline/mapshaper_split_from_s3.py
@@ -42,7 +42,7 @@ def mapshaperize_split_from_s3(
     output_path = mapshaperize_split(
         local_dir=local_dir,
         filename_initial=borders,
-        extension_initial="shp", 
+        extension_initial="shp",
         format_output=format_output,
         niveau_agreg=filter_by,
         provider=provider,
@@ -120,11 +120,10 @@ def mapshaperize_merge_split_from_s3(
             fs=fs
     )
 
-    local_directory
 
     output_path = mapshaperize_split_merge(
         local_dir=local_dir,
-        extension_initial="shp", 
+        extension_initial="shp",
         format_output=format_output,
         niveau_agreg=filter_by,
         provider=provider,
diff --git a/misc/install-mapshaper.sh b/misc/install-mapshaper.sh
index 344ec24b..4579d5a9 100644
--- a/misc/install-mapshaper.sh
+++ b/misc/install-mapshaper.sh
@@ -3,6 +3,7 @@ sudo apt install npm nodejs -y
 sudo apt-get install libmagic-dev -y
 
 git clone https://github.com/mbloch/mapshaper.git --single-branch
+git checkout ec6e7a40bc875ee6d113045e5ee86f47abf57bc7
 cd mapshaper
 yes | npm install       # install dependencies
 yes yes | npm run build     # bundle source code files