diff --git a/configure b/configure
index 4b4d266..36b3dc7 100755
--- a/configure
+++ b/configure
@@ -45,6 +45,8 @@ protobuf-compiler \
 python-dev \
 scons \
 "
+  # Generate graphs of config.ini under m5out.
+  pip install --user pydot
 fi
 command -v apt-get >/dev/null 2>&1 || {
   cat <<EOF