diff --git a/src/fvOptions/sources/general/semiImplicitSource/SemiImplicitSource.C b/src/fvOptions/sources/general/semiImplicitSource/SemiImplicitSource.C
index b4d39e4170..6170b41046 100644
--- a/src/fvOptions/sources/general/semiImplicitSource/SemiImplicitSource.C
+++ b/src/fvOptions/sources/general/semiImplicitSource/SemiImplicitSource.C
@@ -189,7 +189,7 @@ void Foam::fv::SemiImplicitSource<Type>::addSup
 
     UIndirectList<scalar>(Sp, cells_) = injectionRate_[fieldI].second()/VDash_;
 
-    eqn += Su + fvm::Sp(Sp, psi);
+    eqn += Su + fvm::SuSp(Sp, psi);
 }