diff --git a/src/mathed/InsetMathNest.cpp b/src/mathed/InsetMathNest.cpp
index 0ef3e8f8f8..a780a95fb6 100644
--- a/src/mathed/InsetMathNest.cpp
+++ b/src/mathed/InsetMathNest.cpp
@@ -2144,6 +2144,7 @@ bool InsetMathNest::insertCompletion(Cursor & cur, docstring const & s, bool fin
 #endif
 		lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, " "));
 	}
+	cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
 
 	return true;
 }