diff --git a/src/fvOptions/sources/derived/meanVelocityForce/meanVelocityForce.H b/src/fvOptions/sources/derived/meanVelocityForce/meanVelocityForce.H
index a9cbfa725..72809cfc0 100644
--- a/src/fvOptions/sources/derived/meanVelocityForce/meanVelocityForce.H
+++ b/src/fvOptions/sources/derived/meanVelocityForce/meanVelocityForce.H
@@ -35,13 +35,13 @@ Description
     \verbatim
     meanVelocityForceCoeffs
     {
-        fieldNames  (U);                       // Name of velocity field
-        Ubar        (10.0 0 0);                // Desired mean velocity
-        relaxation  0.2;                       // Optional relaxation factor
+        selectionMode   all;                    // Apply force to all cells
+        fieldNames      (U);                    // Name of velocity field
+        Ubar            (10.0 0 0);             // Desired mean velocity
+        relaxation      0.2;                    // Optional relaxation factor
     }
     \endverbatim
 
-
 SourceFiles
     meanVelocityForce.C
 
diff --git a/src/fvOptions/sources/derived/meanVelocityForce/patchMeanVelocityForce/patchMeanVelocityForce.H b/src/fvOptions/sources/derived/meanVelocityForce/patchMeanVelocityForce/patchMeanVelocityForce.H
index b261b4d9f..359ebe6cf 100644
--- a/src/fvOptions/sources/derived/meanVelocityForce/patchMeanVelocityForce/patchMeanVelocityForce.H
+++ b/src/fvOptions/sources/derived/meanVelocityForce/patchMeanVelocityForce/patchMeanVelocityForce.H
@@ -35,10 +35,11 @@ Description
     \verbatim
     patchMeanVelocityForceCoeffs
     {
-        fieldNames  (U);                       // Name of velocity field
-        patch       inlet;                     // Name of the patch
-        Ubar        (10.0 0 0);                // Desired mean velocity
-        relaxation  0.2;                       // Optional relaxation factor
+        selectionMode   all;                    // Apply force to all cells
+        fieldNames      (U);                    // Name of velocity field
+        patch           inlet;                  // Name of the patch
+        Ubar            (10.0 0 0);             // Desired mean velocity
+        relaxation      0.2;                    // Optional relaxation factor
     }
     \endverbatim