diff --git a/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h b/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h
index c322c6f20d2..2fd27d0a830 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h b/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h
index 7f0f6282756..05d158caf15 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/GCPadWiiU.h b/Source/Core/DolphinQt2/Config/Mapping/GCPadWiiU.h
index 730870824a4..5c3cbbe9ac9 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/GCPadWiiU.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/GCPadWiiU.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuExtension.h b/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuExtension.h
index d908c9791be..f98610af24e 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuExtension.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuExtension.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QGroupBox;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuGeneral.h b/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuGeneral.h
index 0bd92954b65..cc91cc21dc4 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuGeneral.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuGeneral.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QComboBox;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuMotionControl.h b/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuMotionControl.h
index 767858a1ab3..e85b9208cf4 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuMotionControl.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuMotionControl.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;
diff --git a/Source/Core/DolphinQt2/GameList/TableProxyModel.h b/Source/Core/DolphinQt2/GameList/TableProxyModel.h
index ec7c1f1d1c9..72a8d1c0ba1 100644
--- a/Source/Core/DolphinQt2/GameList/TableProxyModel.h
+++ b/Source/Core/DolphinQt2/GameList/TableProxyModel.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include <QSortFilterProxyModel>
 
 // This subclass of QSortFilterProxyModel allows the data to be filtered by the view.