diff --git a/src/OpenFOAM/primitives/functions/Function1/CSV/CSV.C b/src/OpenFOAM/primitives/functions/Function1/CSV/CSV.C
index f8c547af3..a5c5fc9d3 100644
--- a/src/OpenFOAM/primitives/functions/Function1/CSV/CSV.C
+++ b/src/OpenFOAM/primitives/functions/Function1/CSV/CSV.C
@@ -273,21 +273,10 @@ void Foam::Function1Types::CSV<Type>::writeData(Ostream& os) const
 
     os.writeKeyword("nHeaderLine") << nHeaderLine_ << token::END_STATEMENT
         << nl;
+
     os.writeKeyword("refColumn") << refColumn_ << token::END_STATEMENT << nl;
 
-    // Force writing labelList in ascii
-    os.writeKeyword("componentColumns");
-    if (os.format() == IOstream::BINARY)
-    {
-        os.format(IOstream::ASCII);
-        os  << componentColumns_;
-        os.format(IOstream::BINARY);
-    }
-    else
-    {
-        os  << componentColumns_;
-    }
-    os  << token::END_STATEMENT << nl;
+    componentColumns_.writeEntry("componentColumns", os);
 
     os.writeKeyword("separator") << string(separator_)
         << token::END_STATEMENT << nl;