diff --git a/src/.docker_modules/g2gtools/0.2.8/Dockerfile b/src/.docker_modules/g2gtools/0.2.8/Dockerfile
index 90e3dd40495deb4868ad6b6f9453e3659fc7e023..2163f345c06c5478ca72fe8890cece852f0e78a6 100644
--- a/src/.docker_modules/g2gtools/0.2.8/Dockerfile
+++ b/src/.docker_modules/g2gtools/0.2.8/Dockerfile
@@ -4,7 +4,7 @@ MAINTAINER Laurent Modolo
 ENV G2GTOOLS_VERSION=0.2.8
 
 RUN apt update \
- && apt install -y wget build-essential zlib1g-dev libbz2-dev liblzma-dev \
+ && apt install -y wget build-essential zlib1g-dev libbz2-dev liblzma-dev procps \
  && wget https://github.com/churchill-lab/g2gtools/archive/v${G2GTOOLS_VERSION}.tar.gz \
  && tar -xvf v${G2GTOOLS_VERSION}.tar.gz \
  && cd g2gtools-${G2GTOOLS_VERSION} \