diff --git a/src/OpenFOAM/db/functionObjects/writeFile/writeFile.C b/src/OpenFOAM/db/functionObjects/writeFile/writeFile.C
index fe856398ff..f749f472ba 100644
--- a/src/OpenFOAM/db/functionObjects/writeFile/writeFile.C
+++ b/src/OpenFOAM/db/functionObjects/writeFile/writeFile.C
@@ -158,7 +158,7 @@ Foam::functionObjects::writeFile::writeFile(const writeFile& wf)
     fileObr_(wf.fileObr_),
     prefix_(wf.prefix_),
     fileName_(wf.fileName_),
-    filePtr_(),
+    filePtr_(nullptr),
     writePrecision_(wf.writePrecision_),
     writeToFile_(wf.writeToFile_),
     updateHeader_(wf.updateHeader_),
@@ -179,10 +179,10 @@ Foam::functionObjects::writeFile::writeFile
     fileObr_(obr),
     prefix_(prefix),
     fileName_(name),
-    filePtr_(),
+    filePtr_(nullptr),
     writePrecision_(IOstream::defaultPrecision()),
-    updateHeader_(true),
     writeToFile_(writeToFile),
+    updateHeader_(true),
     writtenHeader_(false),
     useUserTime_(true),
     startTime_(obr.time().startTime().value())
diff --git a/src/OpenFOAM/db/functionObjects/writeFile/writeFile.H b/src/OpenFOAM/db/functionObjects/writeFile/writeFile.H
index e59b73c61c..d5c673c6ef 100644
--- a/src/OpenFOAM/db/functionObjects/writeFile/writeFile.H
+++ b/src/OpenFOAM/db/functionObjects/writeFile/writeFile.H
@@ -59,7 +59,6 @@ namespace functionObjects
 
 class writeFile
 {
-
 protected:
 
     // Protected data