diff --git a/cmake/RelaxSE_dev.cmake b/cmake/RelaxSE_dev.cmake
index 08cbe3855d335b9ca2965bdb11a51d748edf7afc..a2687d573060868305aeeeeaf097eeca00537a7b 100644
--- a/cmake/RelaxSE_dev.cmake
+++ b/cmake/RelaxSE_dev.cmake
@@ -1,3 +1,4 @@
 set(RELAXSE_dev
   src/generator/dev/dens.F90
+  src/generator/dev/dens_part.F90
   )