diff --git a/NPLib/MUST2/TMust2Physics.cxx b/NPLib/MUST2/TMust2Physics.cxx
index a4bd87c9490da018522574d4a4193cc04ced3fe3..74e0d34151ccdff794595e00d4b2f19611321d7e 100644
--- a/NPLib/MUST2/TMust2Physics.cxx
+++ b/NPLib/MUST2/TMust2Physics.cxx
@@ -554,7 +554,7 @@ void TMust2Physics::ReadAnalysisConfig()
       return;
    }
    cout << " Loading user parameter for Analysis from ConfigMust2.dat " << endl;
-   TAsciiFile* asciiConfig = RootOutput::getInstance->GetAsciiFileAnalysisConfig();
+   TAsciiFile* asciiConfig = RootOutput::getInstance()->GetAsciiFileAnalysisConfig();
    asciiConfig->Append(FileName.c_str());
    
    // read analysis config file