diff --git a/Source/CTest/cmCTestUploadHandler.cxx b/Source/CTest/cmCTestUploadHandler.cxx
index ee9ee91826..9efdf70b84 100644
--- a/Source/CTest/cmCTestUploadHandler.cxx
+++ b/Source/CTest/cmCTestUploadHandler.cxx
@@ -51,7 +51,7 @@ int cmCTestUploadHandler::ProcessHandler()
                   this->CTest->GetTestModelString());
   xml.Attribute("Name", this->CTest->GetCTestConfiguration("Site"));
   xml.Attribute("Generator",
-                std::string("ctest") + cmVersion::GetCMakeVersion());
+                std::string("ctest-") + cmVersion::GetCMakeVersion());
   this->CTest->AddSiteProperties(xml);
   xml.StartElement("Upload");
 
diff --git a/Source/cmCTest.cxx b/Source/cmCTest.cxx
index 709feac39e..003ebdcd59 100644
--- a/Source/cmCTest.cxx
+++ b/Source/cmCTest.cxx
@@ -1523,7 +1523,7 @@ int cmCTest::GenerateCTestNotesOutput(cmXMLWriter& xml,
                 this->Impl->CurrentTag + "-" + this->GetTestModelString());
   xml.Attribute("Name", this->GetCTestConfiguration("Site"));
   xml.Attribute("Generator",
-                std::string("ctest") + cmVersion::GetCMakeVersion());
+                std::string("ctest-") + cmVersion::GetCMakeVersion());
   this->AddSiteProperties(xml);
   xml.StartElement("Notes");