diff --git a/src/external/MusrRoot/TMusrRunHeader.cpp b/src/external/MusrRoot/TMusrRunHeader.cpp
index 9cdcfe61..8dd9178b 100644
--- a/src/external/MusrRoot/TMusrRunHeader.cpp
+++ b/src/external/MusrRoot/TMusrRunHeader.cpp
@@ -1076,7 +1076,7 @@ Bool_t TMusrRunHeader::ExtractHeaderInformation(TObjArray *headerInfo, TString r
         }
         for (Int_t i=0; i<tokens->GetEntries(); i++) {
           ostr = dynamic_cast<TObjString*>(tokens->At(i));
-          dvec.push_back(ostr->GetString().Atoi());
+          dvec.push_back(ostr->GetString().Atof());
         }
         if (tokens) {
           delete tokens;