diff --git a/src/functionObjects/field/interfaceHeight/interfaceHeight.C b/src/functionObjects/field/interfaceHeight/interfaceHeight.C
index 21e80b7d71..5c0fe1998c 100644
--- a/src/functionObjects/field/interfaceHeight/interfaceHeight.C
+++ b/src/functionObjects/field/interfaceHeight/interfaceHeight.C
@@ -242,9 +242,6 @@ Foam::functionObjects::interfaceHeight::interfaceHeight
 {
     read(dict);
     resetNames({"height", "position"});
-
-    writeFileHeader(fileID::heightFile);
-    writeFileHeader(fileID::positionFile);
 }
 
 
diff --git a/src/functionObjects/field/interfaceHeight/interfaceHeight.H b/src/functionObjects/field/interfaceHeight/interfaceHeight.H
index b7412aa748..fe125fbbb9 100644
--- a/src/functionObjects/field/interfaceHeight/interfaceHeight.H
+++ b/src/functionObjects/field/interfaceHeight/interfaceHeight.H
@@ -76,8 +76,8 @@ Usage
       libs         | Library name: fieldFunctionObjects | word |  yes  | -
       locations    | Locations to report the height at  | vectorList | yes | -
       alpha        | Name of alpha field                | word |  no   | alpha
-      liquid     | Flag if the alpha field that of the liquid | bool | no | true
-      direction  | Direction of interface               | vector | no  | g
+      liquid       | Flag if the alpha field that of the liquid | bool | no | true
+      direction    | Direction of interface               | vector | no  | g
       interpolationScheme | Interpolation scheme        | word | no | cellPoint
     \endtable