Install package to have rst2man available when testing.
diff --git a/tests/dockerfiles/Debian_Jessie.docker b/tests/dockerfiles/Debian_Jessie.docker
index a359648..1252314 100644
--- a/tests/dockerfiles/Debian_Jessie.docker
+++ b/tests/dockerfiles/Debian_Jessie.docker
@@ -11,6 +11,7 @@
     autoconf \
     libtool \
     build-essential \
+    python-docutils \
     libboost-all-dev \
     libcppunit-dev swig \
     doxygen \
diff --git a/tests/dockerfiles/Debian_testing.docker b/tests/dockerfiles/Debian_testing.docker
index 4b3bced..26d67d6 100644
--- a/tests/dockerfiles/Debian_testing.docker
+++ b/tests/dockerfiles/Debian_testing.docker
@@ -6,6 +6,7 @@
     autoconf \
     libtool \
     build-essential \
+    python-docutils \
     libcppunit-dev \
     swig \
     doxygen \
diff --git a/tests/dockerfiles/Ubuntu_15_04.docker b/tests/dockerfiles/Ubuntu_15_04.docker
index 58ef22c..973b624 100644
--- a/tests/dockerfiles/Ubuntu_15_04.docker
+++ b/tests/dockerfiles/Ubuntu_15_04.docker
@@ -28,6 +28,7 @@
     liblog4cpp5 \
     liblog4cpp5-dev \
     build-essential \
+    python-docutils \
     libtool \
     shtool \
     pkg-config \
diff --git a/tests/dockerfiles/Ubuntu_16_04.docker b/tests/dockerfiles/Ubuntu_16_04.docker
index ac3e549..e0ccbea 100644
--- a/tests/dockerfiles/Ubuntu_16_04.docker
+++ b/tests/dockerfiles/Ubuntu_16_04.docker
@@ -6,6 +6,7 @@
     autoconf \
     libtool \
     build-essential \
+    python-docutils \
     libcppunit-dev \
     swig \
     doxygen \