diff --git a/toolbx/Dockerfile b/toolbx/Dockerfile
index ba7156c3d13180a0f27a44ca023602227591e1f5..374e5e29a50adf4ab8cfe05e33c476d46b2c7aeb 100644
--- a/toolbx/Dockerfile
+++ b/toolbx/Dockerfile
@@ -16,6 +16,7 @@ RUN rm /etc/apt/apt.conf.d/docker-* && \
         gnupg \
         gosu \
         libnss-myhostname \
+        locales \
         make \
         netbase \
     && \