diff --git a/Source/cmCPluginAPI.cxx b/Source/cmCPluginAPI.cxx
index d1f8446f9c..e78f5fe04d 100644
--- a/Source/cmCPluginAPI.cxx
+++ b/Source/cmCPluginAPI.cxx
@@ -733,7 +733,6 @@ void CCONV cmSourceFileSetName(void* arg, const char* name, const char* dir,
     e << " ." << *ext;
   }
   cmSystemTools::Error(e.str().c_str());
-  return;
 }
 
 void CCONV cmSourceFileSetName2(void* arg, const char* name, const char* dir,
diff --git a/Source/cmCoreTryCompile.cxx b/Source/cmCoreTryCompile.cxx
index 1b7180c229..e0b3120632 100644
--- a/Source/cmCoreTryCompile.cxx
+++ b/Source/cmCoreTryCompile.cxx
@@ -901,5 +901,4 @@ void cmCoreTryCompile::FindOutputFile(const std::string& targetName,
   emsg << cmWrap("  " + this->BinaryDirectory, searchDirs, tmpOutputFile, "\n")
        << "\n";
   this->FindErrorMessage = emsg.str();
-  return;
 }
diff --git a/Source/cmExportLibraryDependenciesCommand.cxx b/Source/cmExportLibraryDependenciesCommand.cxx
index f556a8b523..ac4f04072b 100644
--- a/Source/cmExportLibraryDependenciesCommand.cxx
+++ b/Source/cmExportLibraryDependenciesCommand.cxx
@@ -180,5 +180,4 @@ void cmExportLibraryDependenciesCommand::ConstFinalPass() const
     }
   }
   fout << "endif()\n";
-  return;
 }
diff --git a/Source/cmExtraCodeBlocksGenerator.cxx b/Source/cmExtraCodeBlocksGenerator.cxx
index b0a4c47187..f544e8a3f0 100644
--- a/Source/cmExtraCodeBlocksGenerator.cxx
+++ b/Source/cmExtraCodeBlocksGenerator.cxx
@@ -137,7 +137,6 @@ void Tree::InsertPath(const std::vector<std::string>& splitted,
   // last part of splitted
   newFolder.files.push_back(fileName);
   folders.push_back(newFolder);
-  return;
 }
 
 void Tree::BuildVirtualFolder(cmXMLWriter& xml) const