diff --git a/mola_state_estimation_smoother/package.xml b/mola_state_estimation_smoother/package.xml
index 01b72bf..4a0e8e7 100644
--- a/mola_state_estimation_smoother/package.xml
+++ b/mola_state_estimation_smoother/package.xml
@@ -21,7 +21,7 @@
   <depend>mrpt_libobs</depend>
 
   <!-- GTSAM and its Boost deps -->
-  <build_depend>gtsam</build_depend>
+  <depend>gtsam</depend>
   <build_depend>libboost-serialization-dev</build_depend>
   <build_depend>libboost-system-dev</build_depend>
   <build_depend>libboost-filesystem-dev</build_depend>