diff --git a/hist/inc/Math/WrappedMultiTF1.h b/hist/inc/Math/WrappedMultiTF1.h
index eb63119f480314e2c4464b38a02b193213f9559f..93ac6ff4ab6f8f8aa609943251412af8b6a1020b 100644
--- a/hist/inc/Math/WrappedMultiTF1.h
+++ b/hist/inc/Math/WrappedMultiTF1.h
@@ -18,8 +18,9 @@
 #include "Math/IParamFunction.h"
 #endif
 
-
+#ifndef ROOT_TF1
 #include "TF1.h"
+#endif
 
 namespace ROOT { 
 
diff --git a/hist/inc/Math/WrappedTF1.h b/hist/inc/Math/WrappedTF1.h
index 4884f7d781b0520c9afb5ff3c7ed86d9064e1a76..fecf22c7934956f3c6a95468b36804c448638eb8 100644
--- a/hist/inc/Math/WrappedTF1.h
+++ b/hist/inc/Math/WrappedTF1.h
@@ -18,8 +18,9 @@
 #include "Math/IParamFunction.h"
 #endif
 
-
+#ifndef ROOT_TF1
 #include "TF1.h"
+#endif
 #include <cmath>
 
 namespace ROOT {