diff --git a/fixposition_driver_ros1/launch/dev.launch b/fixposition_driver_ros1/launch/dev.launch
index e27f4cd..dd94007 100644
--- a/fixposition_driver_ros1/launch/dev.launch
+++ b/fixposition_driver_ros1/launch/dev.launch
@@ -1,9 +1,17 @@
 <launch>
-    <arg name="node_name"   default="fixposition_driver_ros1" doc="Node name"/>
-    <arg name="config"      default="config.yaml"             doc="Configuration file to use"/>
-    <arg name="launcher"    default=""                        doc="Launch node via this (node launch-prefix)"/>
+    <arg name="node_name"  default="fixposition_driver_ros1"                 doc="Node name"/>
+    <arg name="config"     default="config.yaml"                             doc="Configuration YAML filename"/>
+    <arg name="config_dir" default="$(find fixposition_driver_ros1)/launch"  doc="Directory containing the configuration file"/>
+    <arg name="launcher"   default=""                                        doc="Launch node via this (node launch-prefix)"/>
+
     <env name="ROSCONSOLE_CONFIG_FILE" value="$(find fixposition_driver_ros1)/launch/rosconsole_dev.conf"/>
-    <node name="$(arg node_name)" pkg="fixposition_driver_ros1" type="fixposition_driver_ros1" output="screen" respawn="false" launch-prefix="$(arg launcher)">
-        <rosparam command="load" file="$(find fixposition_driver_ros1)/launch/$(arg config)"/>
+
+    <node name="$(arg node_name)"
+          pkg="fixposition_driver_ros1"
+          type="fixposition_driver_ros1"
+          output="screen"
+          respawn="false"
+          launch-prefix="$(arg launcher)">
+        <rosparam command="load" file="$(arg config_dir)/$(arg config)"/>
     </node>
 </launch>
diff --git a/fixposition_driver_ros1/launch/node.launch b/fixposition_driver_ros1/launch/node.launch
index 9cf67aa..8ffe9e5 100644
--- a/fixposition_driver_ros1/launch/node.launch
+++ b/fixposition_driver_ros1/launch/node.launch
@@ -1,9 +1,18 @@
 <launch>
-    <arg name="node_name"   default="fixposition_driver_ros1" doc="Node name"/>
-    <arg name="config"      default="config.yaml"             doc="Configuration file to use"/>
-    <arg name="launcher"    default=""                        doc="Launch node via this (node launch-prefix)"/>
+    <arg name="node_name"  default="fixposition_driver_ros1"                 doc="Node name"/>
+    <arg name="config"     default="config.yaml"                             doc="Configuration YAML filename"/>
+    <arg name="config_dir" default="$(find fixposition_driver_ros1)/launch"  doc="Directory containing the configuration file"/>
+    <arg name="launcher"   default=""                                        doc="Launch node via this (node launch-prefix)"/>
+
     <env name="ROSCONSOLE_CONFIG_FILE" value="$(find fixposition_driver_ros1)/launch/rosconsole.conf"/>
-    <node name="$(arg node_name)" pkg="fixposition_driver_ros1" type="fixposition_driver_ros1" output="screen" respawn="true" respawn_delay="5" launch-prefix="$(arg launcher)">
-        <rosparam command="load" file="$(find fixposition_driver_ros1)/launch/$(arg config)"/>
+
+    <node name="$(arg node_name)"
+          pkg="fixposition_driver_ros1"
+          type="fixposition_driver_ros1"
+          output="screen"
+          respawn="true"
+          respawn_delay="5"
+          launch-prefix="$(arg launcher)">
+        <rosparam command="load" file="$(arg config_dir)/$(arg config)"/>
     </node>
 </launch>
diff --git a/fixposition_driver_ros2/launch/dev.launch b/fixposition_driver_ros2/launch/dev.launch
index 01d4c93..acdb2a7 100644
--- a/fixposition_driver_ros2/launch/dev.launch
+++ b/fixposition_driver_ros2/launch/dev.launch
@@ -1,12 +1,14 @@
 <!-- https://design.ros2.org/articles/roslaunch_xml.html -->
 <launch>
-    <arg name="node_name"   default="fixposition_driver_ros2" description="Node name"/> <!--  -->
-    <arg name="config"      default="config.yaml"             description="Configuration file to use"/>
-    <arg name="launcher"    default=""                        description="Launch node via this (node launch-prefix)"/>
+    <arg name="node_name"   default="fixposition_driver_ros2"                          description="Node name"/>
+    <arg name="config"      default="config.yaml"                                      description="Configuration YAML filename"/>
+    <arg name="config_dir"  default="$(find-pkg-share fixposition_driver_ros2)/launch" description="Directory containing the configuration file"/>
+    <arg name="launcher"    default=""                                                 description="Launch node via this (node launch-prefix)"/>
+
     <node name="$(var node_name)" pkg="fixposition_driver_ros2" exec="fixposition_driver_ros2_exec"
         output="screen" respawn="true" respawn_delay="5" launch-prefix="$(var launcher)"
         ros_args="--log-level $(var node_name):=debug">
-        <param from="$(find-pkg-share fixposition_driver_ros2)/launch/$(var config)"/>
+        <param from="$(var config_dir)/$(var config)"/>
         <param name="some_numeric_param" value="100.2"/>
     </node>
 </launch>
diff --git a/fixposition_driver_ros2/launch/node.launch b/fixposition_driver_ros2/launch/node.launch
index d10ca73..551bbc9 100644
--- a/fixposition_driver_ros2/launch/node.launch
+++ b/fixposition_driver_ros2/launch/node.launch
@@ -1,12 +1,14 @@
 <!-- https://design.ros2.org/articles/roslaunch_xml.html -->
 <launch>
-    <arg name="node_name"   default="fixposition_driver_ros2" description="Node name"/> <!--  -->
-    <arg name="config"      default="config.yaml"             description="Configuration file to use"/>
-    <arg name="launcher"    default=""                        description="Launch node via this (node launch-prefix)"/>
+    <arg name="node_name"   default="fixposition_driver_ros2"                          description="Node name"/>
+    <arg name="config"      default="config.yaml"                                      description="Configuration YAML filename"/>
+    <arg name="config_dir"  default="$(find-pkg-share fixposition_driver_ros2)/launch" description="Directory containing the configuration file"/>
+    <arg name="launcher"    default=""                                                 description="Launch node via this (node launch-prefix)"/>
+
     <node name="$(var node_name)" pkg="fixposition_driver_ros2" exec="fixposition_driver_ros2_exec"
         output="screen" respawn="true" respawn_delay="5" launch-prefix="$(var launcher)"
         ros_args="--log-level $(var node_name):=info">
-        <param from="$(find-pkg-share fixposition_driver_ros2)/launch/$(var config)"/>
+        <param from="$(var config_dir)/$(var config)"/>
         <param name="some_numeric_param" value="100.2"/>
     </node>
 </launch>