diff --git a/images/ubuntu/Dockerfile b/images/ubuntu/Dockerfile
index f585919..b7b2425 100644
--- a/images/ubuntu/Dockerfile
+++ b/images/ubuntu/Dockerfile
@@ -8,6 +8,7 @@ RUN apt-get install -y software-properties-common
 RUN add-apt-repository ppa:webupd8team/java -y
 RUN apt-get install -y curl openjdk-8-jdk supervisor pwgen
 RUN apt-get update && apt-get install -y wget git && apt-get clean all
+RUN apt install sudo
 
 ENV APP_NAME=server
 #default directory for SPIGOT-server