diff --git a/scripts/install b/scripts/install
index 1250b61..93e9736 100644
--- a/scripts/install
+++ b/scripts/install
@@ -13,6 +13,31 @@ app=$YNH_APP_INSTANCE_NAME
 # Source app helpers
 source /usr/share/yunohost/helpers
 
+# Normalize the url path syntax
+# Handle the slash at the beginning of path and its absence at ending
+# Return a normalized url path
+#
+# example: url_path=$(ynh_normalize_url_path $url_path)
+#          ynh_normalize_url_path example -> /example
+#          ynh_normalize_url_path /example -> /example
+#          ynh_normalize_url_path /example/ -> /example
+#
+# usage: ynh_normalize_url_path path_to_normalize
+# | arg: url_path_to_normalize - URL path to normalize before using it
+ynh_normalize_url_path () {
+	path=$1
+	test -n "$path" || ynh_die "ynh_normalize_url_path expect a URL path as first argument and received nothing."
+	if [ "${path:0:1}" != "/" ]; then    # If the first character is not a /
+		path="/$path"    # Add / at begin of path variable
+	fi
+	if [ "${path:${#path}-1}" == "/" ] && [ ${#path} -gt 1 ]; then    # If the last character is a / and that not the only character.
+		path="${path:0:${#path}-1}"	# Delete the last character
+	fi
+    echo $path
+}
+
+ynh_normalize_url_path $path
+
 # Check domain/path availability
 sudo yunohost app checkurl "${domain}${path}" -a "$app" \
     || ynh_die "Path not available: ${domain}${path}"