diff --git a/contrib/docker/debian-amd64:oldstable/Dockerfile b/contrib/docker/debian-amd64:oldstable/Dockerfile
index cfb545d4ad..506c1731f0 100644
--- a/contrib/docker/debian-amd64:oldstable/Dockerfile
+++ b/contrib/docker/debian-amd64:oldstable/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps
diff --git a/contrib/docker/debian-amd64:stable/Dockerfile b/contrib/docker/debian-amd64:stable/Dockerfile
index 40521f536b..bb405f6d56 100644
--- a/contrib/docker/debian-amd64:stable/Dockerfile
+++ b/contrib/docker/debian-amd64:stable/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps
diff --git a/contrib/docker/debian-amd64:unstable/Dockerfile b/contrib/docker/debian-amd64:unstable/Dockerfile
index 5a76f33112..7e15201d6d 100644
--- a/contrib/docker/debian-amd64:unstable/Dockerfile
+++ b/contrib/docker/debian-amd64:unstable/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps
diff --git a/contrib/docker/debian-i386:oldstable/Dockerfile b/contrib/docker/debian-i386:oldstable/Dockerfile
index cfb545d4ad..506c1731f0 100644
--- a/contrib/docker/debian-i386:oldstable/Dockerfile
+++ b/contrib/docker/debian-i386:oldstable/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps
diff --git a/contrib/docker/debian-i386:stable/Dockerfile b/contrib/docker/debian-i386:stable/Dockerfile
index f361e81674..fb3bc1f438 100644
--- a/contrib/docker/debian-i386:stable/Dockerfile
+++ b/contrib/docker/debian-i386:stable/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps
diff --git a/contrib/docker/debian-i386:unstable/Dockerfile b/contrib/docker/debian-i386:unstable/Dockerfile
index e4284e2cb1..5edf316ddf 100644
--- a/contrib/docker/debian-i386:unstable/Dockerfile
+++ b/contrib/docker/debian-i386:unstable/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps
diff --git a/contrib/docker/ubuntu-amd64:latest/Dockerfile b/contrib/docker/ubuntu-amd64:latest/Dockerfile
index 1b241583b2..8356b2296c 100644
--- a/contrib/docker/ubuntu-amd64:latest/Dockerfile
+++ b/contrib/docker/ubuntu-amd64:latest/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps
diff --git a/contrib/docker/ubuntu-i386:latest/Dockerfile b/contrib/docker/ubuntu-i386:latest/Dockerfile
index 8743e17ff5..bef58a4ac3 100644
--- a/contrib/docker/ubuntu-i386:latest/Dockerfile
+++ b/contrib/docker/ubuntu-i386:latest/Dockerfile
@@ -21,5 +21,6 @@ RUN apt-get -y install	\
 	libssl-dev	\
 	libxml2-dev	\
 	pkg-config
-RUN apt-get -y install \
-	net-tools
+RUN apt-get -y install	\
+	net-tools	\
+	procps