diff --git a/tutorials/tutorial3.cpp b/tutorials/tutorial3.cpp
index 0e9f4362a..4ba293bc6 100644
--- a/tutorials/tutorial3.cpp
+++ b/tutorials/tutorial3.cpp
@@ -372,11 +372,12 @@ int main ()
 
     /// \page tutorial3
     /// \details 
-    /// We initialise water saturation to minimum everywhere.
+    /// We set up a two-phase state object, and
+    /// initialise water saturation to minimum everywhere.
     /// \code
     TwophaseState state;
-    state.init(*grid.c_grid());
-    state.setWaterSat(allcells, props, TwophaseState::MinSat);
+    state.init(*grid.c_grid(), 2);
+    state.setFirstSat(allcells, props, TwophaseState::MinSat);
     /// \endcode
     
     /// \page tutorial3