diff --git a/bfps/cpp/particles/particles_output_hdf5.hpp b/bfps/cpp/particles/particles_output_hdf5.hpp
index 8f2b45ed145a3e22a561e146a4fca302cd0fd513..d7c987eea444d82d5c1180cd0124601c191cbf84 100644
--- a/bfps/cpp/particles/particles_output_hdf5.hpp
+++ b/bfps/cpp/particles/particles_output_hdf5.hpp
@@ -242,7 +242,6 @@ public:
             variable_used_only_in_assert(rethdf);
             assert(rethdf >= 0);
 
-            DEBUG_MSG("before writing state\n");
             herr_t	status = H5Dwrite(
                     dataset_id,
                     type_id,
@@ -258,7 +257,6 @@ public:
             assert(rethdf >= 0);
             rethdf = H5Sclose(filespace);
             assert(rethdf >= 0);
-            DEBUG_MSG("after writing state\n");
         }
         {
             assert(size_particle_rhs >= 0);
@@ -306,7 +304,6 @@ public:
                 variable_used_only_in_assert(rethdf);
                 assert(rethdf >= 0);
 
-                DEBUG_MSG("before writing rhs %d\n", idx_rhs);
                 herr_t	status = H5Dwrite(
                         dataset_id,
                         type_id,
@@ -320,7 +317,6 @@ public:
                 assert(rethdf >= 0);
                 rethdf = H5Sclose(memspace);
                 assert(rethdf >= 0);
-                DEBUG_MSG("after writing rhs %d\n", idx_rhs);
             }
             int rethdf = H5Dclose(dataset_id);
             variable_used_only_in_assert(rethdf);