diff --git a/scripts/install b/scripts/install
index b102f16..aa3cbca 100755
--- a/scripts/install
+++ b/scripts/install
@@ -42,7 +42,7 @@ ynh_app_setting_set --app=$app --key=public_ip4 --value=$public_ip4
 
 pushd "$install_dir"
 	./smp-server init --no-password --ip $public_ip4 --store-log --yes
-	./xftp-server init --ip $public_ip4 --quota '$storage_quota' --store-log --path $data_dir
+	./xftp-server init --ip $public_ip4 --quota "$storage_quota" --store-log --path $data_dir
 popd
 
 fingerprint=$(cat /etc/opt/simplex/fingerprint)