diff --git a/reducedmodeloptimizer_structs.hpp b/reducedmodeloptimizer_structs.hpp
index 53cb520..683cf77 100644
--- a/reducedmodeloptimizer_structs.hpp
+++ b/reducedmodeloptimizer_structs.hpp
@@ -383,7 +383,7 @@ struct Settings
                           settings1.perBaseScenarioObjectiveWeights.end(),
                           settings2.perBaseScenarioObjectiveWeights.begin())
                 .first
-            != settings1.perBaseScenarioObjectiveWeights.end();
+            == settings1.perBaseScenarioObjectiveWeights.end();
       return settings1.numberOfFunctionCalls == settings2.numberOfFunctionCalls
              && settings1.variablesRanges == settings2.variablesRanges
              && settings1.solverAccuracy == settings2.solverAccuracy && haveTheSameObjectiveWeights