diff --git a/src/SubModel.hh b/src/SubModel.hh
index 77786fb54b07a22d7cc266d1fd5ef3d712d3d5ab..e0dfe79c18d61cf1ee63bc57037a8f6693934b38 100644
--- a/src/SubModel.hh
+++ b/src/SubModel.hh
@@ -101,7 +101,7 @@ private:
 inline bool
 TrendComponentModelTable::isExistingTrendComponentModelName(const string &name_arg) const
 {
-  return names.find(name_arg) == names.end() ? false : true;
+  return names.find(name_arg) != names.end();
 }
 
 inline bool
@@ -168,7 +168,7 @@ private:
 inline bool
 VarModelTable::isExistingVarModelName(const string &name_arg) const
 {
-  return names.find(name_arg) == names.end() ? false : true;
+  return names.find(name_arg) != names.end();
 }
 
 inline bool