--- a/applications/solvers/multiphase/MPPICInterFoam/Make/options
+++ b/applications/solvers/multiphase/MPPICInterFoam/Make/options
@@ -40,5 +40,6 @@
     -lsampling \
     -lregionModels \
     -lsurfaceFilmModels \
+    -lregionFaModels \
     -lcompressibleTwoPhaseMixtureTurbulenceModels