diff --git a/scripts/install b/scripts/install
index 5d11382..8a895c2 100644
--- a/scripts/install
+++ b/scripts/install
@@ -48,7 +48,7 @@ ynh_package_is_installed "php5-cli" \
   || ynh_package_install "php5-cli"
 
 # Create tmp directory and fetch app inside
-TMPDIR=$(ynh_mkdir_tmp)
+TMPDIR=$(mktemp -d)
 extract_agendav "$TMPDIR"
 
 # Generate random password and encryption key
diff --git a/scripts/upgrade b/scripts/upgrade
index df04fac..7ab8868 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -54,7 +54,7 @@ ynh_package_is_installed "php5-cli" \
   || ynh_package_install "php5-cli"
 
 # Create tmp directory and fetch app inside
-TMPDIR=$(ynh_mkdir_tmp)
+TMPDIR=$(mktemp -d)
 extract_agendav "$TMPDIR"
 
 # Copy and set AgenDAV configuration