diff --git a/src/immersedBoundary/immersedBoundary/Make/files b/src/immersedBoundary/immersedBoundary/Make/files
index d97b8dafc..bba4958c0 100644
--- a/src/immersedBoundary/immersedBoundary/Make/files
+++ b/src/immersedBoundary/immersedBoundary/Make/files
@@ -9,6 +9,7 @@ immersedBoundaryFvPatchFields/immersedBoundaryFvPatchField/immersedBoundaryFvPat
 immersedBoundaryFvsPatchFields/immersedBoundaryFvsPatchField/immersedBoundaryFvsPatchFields.C
 
 immersedBoundaryFvPatchFields/basic/fixedValueIbFvPatchField/fixedValueIbFvPatchFields.C
+immersedBoundaryFvPatchFields/basic/zeroGradientIbFvPatchField/zeroGradientIbFvPatchFields.C
 immersedBoundaryFvPatchFields/basic/mixedIbFvPatchField/mixedIbFvPatchFields.C
 immersedBoundaryFvPatchFields/derived/movingImmersedBoundaryVelocity/movingImmersedBoundaryVelocityFvPatchVectorField.C
 
diff --git a/src/immersedBoundary/immersedBoundary/include/immersedBoundaryCourantNo.H b/src/immersedBoundary/immersedBoundary/include/immersedBoundaryCourantNo.H
index 05c1c266d..5963c6934 100644
--- a/src/immersedBoundary/immersedBoundary/include/immersedBoundaryCourantNo.H
+++ b/src/immersedBoundary/immersedBoundary/include/immersedBoundaryCourantNo.H
@@ -25,8 +25,11 @@ Global
     CourantNo
 
 Description
-    Calculates and outputs the mean and maximum Courant Numbers with
-    immersed boundary correction.
+    Calculates and outputs the mean and maximum Courant Numbers for
+    incompressible flow with immersed boundary correction.
+
+Author
+    Hrvoje Jasak, Wikki Ltd.  All rights reserved
 
 \*---------------------------------------------------------------------------*/