diff --git a/src/functionObjects/field/interfaceHeight/interfaceHeight.C b/src/functionObjects/field/interfaceHeight/interfaceHeight.C
index 5c0fe1998c..655e318600 100644
--- a/src/functionObjects/field/interfaceHeight/interfaceHeight.C
+++ b/src/functionObjects/field/interfaceHeight/interfaceHeight.C
@@ -242,6 +242,12 @@ Foam::functionObjects::interfaceHeight::interfaceHeight
 {
     read(dict);
     resetNames({"height", "position"});
+
+    if (Pstream::master())
+    {
+        writeFileHeader(fileID::heightFile);
+        writeFileHeader(fileID::positionFile);
+    }
 }