Add DEBIAN_FRONTEND=noninteractive
diff --git a/tests/dockerfiles/Ubuntu_16_04.docker b/tests/dockerfiles/Ubuntu_16_04.docker
index 21eafec..17698f8 100644
--- a/tests/dockerfiles/Ubuntu_16_04.docker
+++ b/tests/dockerfiles/Ubuntu_16_04.docker
@@ -1,7 +1,7 @@
 FROM ubuntu:16.04
 MAINTAINER Piotr Krysik
 
-RUN apt-get update && apt-get install -y \
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
     cmake \
     autoconf \
     libtool \