diff --git a/tree/dataframe/inc/LinkDef.h b/tree/dataframe/inc/LinkDef.h
index 7c13310367149..1db345a0fe230 100644
--- a/tree/dataframe/inc/LinkDef.h
+++ b/tree/dataframe/inc/LinkDef.h
@@ -54,6 +54,7 @@
 #pragma link C++ class ROOT::Detail::RDF::RMergeableValue<TH2D>+;
 #pragma link C++ class ROOT::Detail::RDF::RMergeableValue<TH3D>+;
 #pragma link C++ class ROOT::Detail::RDF::RMergeableValue<THnD>+;
+#pragma link C++ class ROOT::Detail::RDF::RMergeableValue<THnSparseD>+;
 #pragma link C++ class ROOT::Detail::RDF::RMergeableValue<TGraph>+;
 #pragma link C++ class ROOT::Detail::RDF::RMergeableValue<TGraphAsymmErrors>+;
 #pragma link C++ class ROOT::Detail::RDF::RMergeableValue<TStatistic>+;