diff --git a/scripts/_common.sh b/scripts/_common.sh
index 8d8cf4c..1fc4504 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -33,6 +33,9 @@ GOGS_BINARY_URL="https://github.com/gogits/gogs/releases/download/v${VERSION}/${
 extract_gogs() {
   local DESTDIR=$1
   local TMPDIR=$(mktemp -d)
+  
+
+}
 
   # retrieve and extract Gogs tarball
   gogs_tarball="/tmp/gogs.zip"
@@ -44,3 +47,16 @@ extract_gogs() {
   sudo rsync -a "$TMPDIR"/gogs/* "$DESTDIR"
   rm -rf "$gogs_tarball" "${TMPDIR:-/tmp/fakefile}"
 }
+
+# Add path
+ynh_normalize_url_path () {
+	path_url=$1
+	test -n "$path_url" || ynh_die "ynh_normalize_url_path expect a URL path as first argument and received nothing."
+	if [ "${path_url:0:1}" != "/" ]; then    # If the first character is not a /
+		path_url="/$path_url"    # Add / at begin of path variable
+	fi
+	if [ "${path_url:${#path_url}-1}" == "/" ] && [ ${#path_url} -gt 1 ]; then    # If the last character is a / and that not the only character.
+		path_url="${path_url:0:${#path_url}-1}"	# Delete the last character
+	fi
+	echo $path_url
+}
diff --git a/scripts/install b/scripts/install
index c8102cd..935227c 100644
--- a/scripts/install
+++ b/scripts/install
@@ -19,6 +19,12 @@ dbuser=$app
 # Source app helpers
 source /usr/share/yunohost/helpers
 
+#=================================================
+# CHECK IF THE APP CAN BE INSTALLED WITH THIS ARGS
+#=================================================
+
+path=$(ynh_normalize_url_path $path)	# Vérifie et corrige la syntaxe du path.
+
 # TODO: Check domain/path availability with app helper
 sudo yunohost app checkurl "${domain}${path}" -a "$app" \
   || ynh_die "The path ${domain}${path} is not available for app installation."