diff --git a/src/LearningMethods/ParticleSwarm.cpp b/src/LearningMethods/ParticleSwarm.cpp
index 65325dbc7e51cd534683ad1030f047410e1b402f..3aadd29d487c16d54e77d6fcb630523e89bef5a5 100644
--- a/src/LearningMethods/ParticleSwarm.cpp
+++ b/src/LearningMethods/ParticleSwarm.cpp
@@ -408,6 +408,7 @@ namespace lib4neuro {
 //
 //    this->f->eval( this->get_solution() );
 
+        ef.eval( this->get_parameters() );
 
         delete centroid;
     }