diff --git a/hello_wolf/hello_wolf_autoconf.cpp b/hello_wolf/hello_wolf_autoconf.cpp
index 369dbe96c1b9eae70d2f2ed3bf2501eff60ad06b..3c89914f784a5948249fdf1ff9f528c97559ca0f 100644
--- a/hello_wolf/hello_wolf_autoconf.cpp
+++ b/hello_wolf/hello_wolf_autoconf.cpp
@@ -107,7 +107,7 @@ int main()
     std::string file = std::string(_WOLF_ROOT_DIR) + "/hello_wolf/hello_wolf_config.yaml";
 
     // parse file into params server: each param will be retrievable from this params server:
-    ParserYAML parser = ParserYAML(file);
+    ParserYAML parser = ParserYAML(file, std::string(_WOLF_ROOT_DIR));
     parser.parse();
     ParamsServer server = ParamsServer(parser.getParams(), parser.sensorsSerialization(), parser.processorsSerialization());
 
diff --git a/hello_wolf/hello_wolf_config.yaml b/hello_wolf/hello_wolf_config.yaml
index b2ea7b0cd4d93ed3c4226e59613a135e5f2a32e6..673313d13f8138da139a08ae461d30c7c6893847 100644
--- a/hello_wolf/hello_wolf_config.yaml
+++ b/hello_wolf/hello_wolf_config.yaml
@@ -15,9 +15,7 @@ config:
       name:               "sen odom"
       extrinsic: 
         pose:             [0,0, 0]
-      #follow:             "/Users/jsola/dev/wolf_lib/core/hello_wolf/sensor_odom_2D.yaml"
-      k_disp_to_disp:     0.1
-      k_rot_to_rot:       0.1
+      follow:             "hello_wolf/sensor_odom_2D.yaml"
 
     - 
       type:               "RANGE BEARING"