diff --git a/math/vecops/inc/ROOT/RVec.hxx b/math/vecops/inc/ROOT/RVec.hxx
index e5268fff225f3b765bd2e339fdadf6b8cc33904f..fa3e6a7eb7d30b451f80ac4a77a6a96f3b59c00d 100644
--- a/math/vecops/inc/ROOT/RVec.hxx
+++ b/math/vecops/inc/ROOT/RVec.hxx
@@ -23,6 +23,7 @@
 
 #include <ROOT/RAdoptAllocator.hxx>
 #include <ROOT/RIntegerSequence.hxx>
+#include <ROOT/RStringView.hxx>
 #include <ROOT/TypeTraits.hxx>
 
 #include <algorithm>