diff --git a/docs/source/solvers/dfSprayFoam.rst b/docs/source/solvers/dfSprayFoam.rst
index 502beff3..c276c54a 100644
--- a/docs/source/solvers/dfSprayFoam.rst
+++ b/docs/source/solvers/dfSprayFoam.rst
@@ -37,7 +37,7 @@ This case simulates combustion inside a constant volume chamber based on an expe
 **Configurations Different from OpenFOAM Case**
 
 
-Cantera is used instead of the built-in modules of OpenFOAM to solve the chemical reactions. Therefore, a chemical mechanism file in YAML format is required in the case directory, and the full name of the mechanism file ("xxx. YAML") should be the entry after the keyword **CanteraMechanismFile** in *constant/CanteraTorchProperties*. Non-reacting simulation can be conducted by switching the entry after the keyword **chemistry** from **on** to **off** in *constant/CanteraTorchProperties*.
+Cantera is used instead of the built-in modules of OpenFOAM to solve the chemical reactions. Therefore, a chemical mechanism file in YAML format is required in the case directory, and the full name of the mechanism file ("xxx. yaml") should be the entry after the keyword **CanteraMechanismFile** in *constant/CanteraTorchProperties*. Non-reacting simulation can be conducted by switching the entry after the keyword **chemistry** from **on** to **off** in *constant/CanteraTorchProperties*.
 
 **Results**