diff --git a/tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/phaseProperties b/tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/phaseProperties
index 56ac64c8ac..cd5a6a797f 100644
--- a/tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/phaseProperties
+++ b/tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/phaseProperties
@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phases          (water oir);
+phases          (water oil);
 
 sigma           0.05;
 
diff --git a/tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/physicalProperties.oir b/tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/physicalProperties.oil
similarity index 100%
rename from tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/physicalProperties.oir
rename to tutorials/multiphase/interFoam/laminar/mixerVessel2D/constant/physicalProperties.oil