diff --git a/ubuntu/18.04/Dockerfile b/ubuntu/18.04/Dockerfile
index 94b6e92..c7d58f8 100644
--- a/ubuntu/18.04/Dockerfile
+++ b/ubuntu/18.04/Dockerfile
@@ -5,7 +5,7 @@ ENV DEBIAN_FRONTEND noninteractive
 # The second 'apt-get install' line is to be able to build a kernel, do a make header_install, etc,
 # So that we can build samples/bpf/
 RUN apt-get -y update && \
-    apt-get -y install \
+    apt-get -y install --no-install-recommends \
 	make gcc flex bison \
 	bc findutils clang llvm \
 	libclang-dev llvm-dev \
