diff --git a/core/base/inc/LinkDef1.h b/core/base/inc/LinkDef1.h
index c9558c39e6383435747a158362b9a6490a0ad5ef..46d2500f18ba242c6afaaa1e62254872ab6cc0c8 100644
--- a/core/base/inc/LinkDef1.h
+++ b/core/base/inc/LinkDef1.h
@@ -110,6 +110,7 @@
 
 #pragma link C++ nestedtypedef;
 #pragma link C++ namespace ROOT;
+#pragma link C++ namespace TMath; 
 #pragma link C++ typedef ShowMembersFunc_t;
 #pragma link C++ typedef ROOT::NewFunc_t;
 #pragma link C++ typedef ROOT::NewArrFunc_t;