diff --git a/scripts/_common.sh b/scripts/_common.sh
index 8d8bdc4..5035248 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -20,25 +20,25 @@ elif [ -n "$(uname -m | grep arm)" ]; then
 	miniconda_architecture="arm"
 else
 	ynh_die "Unable to detect your achitecture, please open a bug describing \
-        your hardware and the result of the command \"uname -m\"." 1
+		your hardware and the result of the command \"uname -m\"." 1
 fi
 
 #=================================================
 # CREATE FOLDERS
 #=================================================
 create_dir() {
-    mkdir -p "$config_path"
+	mkdir -p "$config_path"
 }
 
 #=================================================
 # CONFIGURATION FILES FOR JUPYTERLAB
 #=================================================
 config_jupyterlab() {
-    create_dir
+	create_dir
 
 	jupyterlab_conf_path="$config_path/jupyterhub_config.py"
 
-    ynh_backup_if_checksum_is_different $jupyterlab_conf_path
+	ynh_backup_if_checksum_is_different $jupyterlab_conf_path
 
 	# JupyterLab configuration
 	cp -f ../conf/jupyterhub_config.py $jupyterlab_conf_path
@@ -50,18 +50,18 @@ config_jupyterlab() {
 	ynh_replace_string "__FINAL_PATH__" "$final_path" $jupyterlab_conf_path
 	ynh_replace_string "__ADMIN__" "$admin" $jupyterlab_conf_path
 
-    ynh_store_file_checksum $jupyterlab_conf_path
+	ynh_store_file_checksum $jupyterlab_conf_path
 }
 
 config_jupyter_notebook() {
 	jupyter_notebook_conf_path="$final_path/etc/jupyter/jupyter_notebook_config.py"
 
-    ynh_backup_if_checksum_is_different $jupyter_notebook_conf_path
+	ynh_backup_if_checksum_is_different $jupyter_notebook_conf_path
 
 	# Jupyter notebook configuration
 	cp -f ../conf/jupyter_notebook_config.py $jupyter_notebook_conf_path
 
-    ynh_store_file_checksum $jupyter_notebook_conf_path
+	ynh_store_file_checksum $jupyter_notebook_conf_path
 }
 
 #=================================================
@@ -108,41 +108,41 @@ update_src_version() {
 #=================================================
 # This function is inspired by the ynh_setup_source function, adapted to deal with .sh files
 setup_source() {
-    local src_id=${1:-app} # If the argument is not given, source_id equals "app"
+	local src_id=${1:-app} # If the argument is not given, source_id equals "app"
 
-    update_src_version # Update source file
+	update_src_version # Update source file
 
-    # Load value from configuration file (see above for a small doc about this file
-    # format)
-    local src_url=$(grep 'SOURCE_URL=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_sum=$(grep 'SOURCE_SUM=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_sumprg=$(grep 'SOURCE_SUM_PRG=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_format=$(grep 'SOURCE_FORMAT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_extract=$(grep 'SOURCE_EXTRACT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_filename=$(grep 'SOURCE_FILENAME=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+	# Load value from configuration file (see above for a small doc about this file
+	# format)
+	local src_url=$(grep 'SOURCE_URL=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+	local src_sum=$(grep 'SOURCE_SUM=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+	local src_sumprg=$(grep 'SOURCE_SUM_PRG=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+	local src_format=$(grep 'SOURCE_FORMAT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+	local src_extract=$(grep 'SOURCE_EXTRACT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+	local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+	local src_filename=$(grep 'SOURCE_FILENAME=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
 
-    # Default value
-    src_sumprg=${src_sumprg:-sha256sum}
-    src_in_subdir=${src_in_subdir:-true}
-    src_format=${src_format:-tar.gz}
-    src_format=$(echo "$src_format" | tr '[:upper:]' '[:lower:]')
-    src_extract=${src_extract:-true}
-    if [ "$src_filename" = "" ] ; then
-        src_filename="${src_id}.${src_format}"
-    fi
-    local local_src="/opt/yunohost-apps-src/${YNH_APP_ID}/${src_filename}"
+	# Default value
+	src_sumprg=${src_sumprg:-sha256sum}
+	src_in_subdir=${src_in_subdir:-true}
+	src_format=${src_format:-tar.gz}
+	src_format=$(echo "$src_format" | tr '[:upper:]' '[:lower:]')
+	src_extract=${src_extract:-true}
+	if [ "$src_filename" = "" ] ; then
+		src_filename="${src_id}.${src_format}"
+	fi
+	local local_src="/opt/yunohost-apps-src/${YNH_APP_ID}/${src_filename}"
 
-    if test -e "$local_src"
-    then    # Use the local source file if it is present
-        cp $local_src $src_filename
-    else    # If not, download the source
-        local out=`wget -nv -O $src_filename $src_url 2>&1` || ynh_print_err $out
-    fi
+	if test -e "$local_src"
+	then	# Use the local source file if it is present
+		cp $local_src $src_filename
+	else	# If not, download the source
+		local out=`wget -nv -O $src_filename $src_url 2>&1` || ynh_print_err $out
+	fi
 
-    # Check the control sum
-    echo "${src_sum} ${src_filename}" | ${src_sumprg} -c --status \
-        || ynh_die "Corrupt source"
+	# Check the control sum
+	echo "${src_sum} ${src_filename}" | ${src_sumprg} -c --status \
+		|| ynh_die "Corrupt source"
 
 	bash $src_filename -b -p $final_path