diff --git a/math/mathcore/inc/LinkDef3.h b/math/mathcore/inc/LinkDef3.h
index 0890d9c1c9157c954a211f1a6aa1671120b0e767..08f7f1311d12611416fd9ff1bdb8085d40287a0c 100644
--- a/math/mathcore/inc/LinkDef3.h
+++ b/math/mathcore/inc/LinkDef3.h
@@ -55,4 +55,6 @@
 #pragma link C++ function ROOT::Fit::Fitter::LikelihoodFit(const ROOT::Fit::BinData &);
 #pragma link C++ function ROOT::Fit::Fitter::LikelihoodFit(const ROOT::Fit::UnBinData &);
 
+#pragma link C++ class std::vector<ROOT::Fit::ParameterSettings> >;
+
 #endif