diff --git a/src/tools/sdktool/addkitoperation.cpp b/src/tools/sdktool/addkitoperation.cpp
index 6ed2feea365..4f0911d011a 100644
--- a/src/tools/sdktool/addkitoperation.cpp
+++ b/src/tools/sdktool/addkitoperation.cpp
@@ -15,6 +15,7 @@
 
 #include "settings.h"
 
+#include <QDir>
 #include <QLoggingCategory>
 #include <QRegularExpression>
 
diff --git a/src/tools/sdktool/addqtoperation.cpp b/src/tools/sdktool/addqtoperation.cpp
index 69117eb53a0..ee48c1e5ec5 100644
--- a/src/tools/sdktool/addqtoperation.cpp
+++ b/src/tools/sdktool/addqtoperation.cpp
@@ -15,6 +15,7 @@
 #include <QTest>
 #endif
 
+#include <QDir>
 #include <QLoggingCategory>
 #include <QRegularExpression>
 
diff --git a/src/tools/sdktool/sdkpersistentsettings.cpp b/src/tools/sdktool/sdkpersistentsettings.cpp
index db5ba21a34d..ff8b172d632 100644
--- a/src/tools/sdktool/sdkpersistentsettings.cpp
+++ b/src/tools/sdktool/sdkpersistentsettings.cpp
@@ -367,7 +367,7 @@ SdkFileSaver::SdkFileSaver(const QString &filePath, QIODevice::OpenMode mode)
 {
     m_filePath = filePath;
     // Workaround an assert in Qt -- and provide a useful error message, too:
-#if Q_OS_WIN
+#ifdef Q_OS_WIN
         // Taken from: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
         static const QStringList reservedNames
                 = {"CON", "PRN", "AUX", "NUL",