diff --git a/Source/CTest/cmCTestGenericHandler.cxx b/Source/CTest/cmCTestGenericHandler.cxx
index cbc2aa710..a406d3eef 100644
--- a/Source/CTest/cmCTestGenericHandler.cxx
+++ b/Source/CTest/cmCTestGenericHandler.cxx
@@ -109,7 +109,7 @@ bool cmCTestGenericHandler::StartLogFile(const char* name, cmGeneratedFileStream
     {
     ostr << "_" << m_SubmitIndex;
     }
-  if ( *m_CTest->GetCurrentTag().c_str() )
+  if ( !m_CTest->GetCurrentTag().empty() )
     {
     ostr << "_" << m_CTest->GetCurrentTag();
     }