diff --git a/docs/source/FluidTimeStep.rst b/docs/source/FluidTimeStep.rst
index 5239d5c799d254a0efb6d22f5ed06df65f5e0c7d..65382aea0c811b2829aef7c7fed52d392413985c 100644
--- a/docs/source/FluidTimeStep.rst
+++ b/docs/source/FluidTimeStep.rst
@@ -24,7 +24,7 @@ In the predictor
 
 then defining
 
-.. math:: U_g^{\ast \ast} = U_g^{\ast} - \frac{1}{\rho_g} \nabla \phi
+.. math:: U_g^{\ast \ast} = U_g^{\ast} - \frac{\Delta t}{\rho_g} \nabla \phi
 
 and 
 
@@ -45,7 +45,7 @@ In the corrector
 
 then defining
 
-.. math:: U_g^{n+1} = U_g^{\ast \ast \ast} - \frac{1}{\rho_g} \nabla \phi
+.. math:: U_g^{n+1} = U_g^{\ast \ast \ast} - \frac{\Delta t}{\rho_g} \nabla \phi
 
 and