diff --git a/sdrgui/soapygui/discreterangegui.h b/sdrgui/soapygui/discreterangegui.h
index 76d5e42a1..86b495a47 100644
--- a/sdrgui/soapygui/discreterangegui.h
+++ b/sdrgui/soapygui/discreterangegui.h
@@ -20,13 +20,14 @@
 #include <QWidget>
 #include <QString>
 
+#include "export.h"
 #include "itemsettinggui.h"
 
 namespace Ui {
     class DiscreteRangeGUI;
 }
 
-class DiscreteRangeGUI : public ItemSettingGUI
+class SDRGUI_API DiscreteRangeGUI : public ItemSettingGUI
 {
     Q_OBJECT
 public:
diff --git a/sdrgui/soapygui/dynamicitemsettinggui.h b/sdrgui/soapygui/dynamicitemsettinggui.h
index f90a97cac..ed64efaae 100644
--- a/sdrgui/soapygui/dynamicitemsettinggui.h
+++ b/sdrgui/soapygui/dynamicitemsettinggui.h
@@ -17,9 +17,10 @@
 #include <QObject>
 #include <QString>
 
+#include "export.h"
 #include "itemsettinggui.h"
 
-class DynamicItemSettingGUI : public QObject
+class SDRGUI_API DynamicItemSettingGUI : public QObject
 {
     Q_OBJECT
 public:
diff --git a/sdrgui/soapygui/intervalrangegui.h b/sdrgui/soapygui/intervalrangegui.h
index 1e3b00986..a5df1235e 100644
--- a/sdrgui/soapygui/intervalrangegui.h
+++ b/sdrgui/soapygui/intervalrangegui.h
@@ -21,13 +21,14 @@
 #include <QWidget>
 #include <QString>
 
+#include "export.h"
 #include "itemsettinggui.h"
 
 namespace Ui {
     class IntervalRangeGUI;
 }
 
-class IntervalRangeGUI : public ItemSettingGUI
+class SDRGUI_API IntervalRangeGUI : public ItemSettingGUI
 {
     Q_OBJECT
 public:
diff --git a/sdrgui/soapygui/intervalslidergui.h b/sdrgui/soapygui/intervalslidergui.h
index fa89a87aa..1ffc1aad7 100644
--- a/sdrgui/soapygui/intervalslidergui.h
+++ b/sdrgui/soapygui/intervalslidergui.h
@@ -20,13 +20,14 @@
 #include <QWidget>
 #include <QString>
 
+#include "export.h"
 #include "itemsettinggui.h"
 
 namespace Ui {
     class IntervalSliderGUI;
 }
 
-class IntervalSliderGUI : public ItemSettingGUI
+class SDRGUI_API IntervalSliderGUI : public ItemSettingGUI
 {
     Q_OBJECT
 public:
diff --git a/sdrgui/soapygui/itemsettinggui.h b/sdrgui/soapygui/itemsettinggui.h
index e84621cd3..7c8757f6f 100644
--- a/sdrgui/soapygui/itemsettinggui.h
+++ b/sdrgui/soapygui/itemsettinggui.h
@@ -21,7 +21,9 @@
 
 #include <QWidget>
 
-class ItemSettingGUI : public QWidget
+#include "export.h"
+
+class SDRGUI_API ItemSettingGUI : public QWidget
 {
     Q_OBJECT
 public:
diff --git a/sdrgui/soapygui/stringrangegui.h b/sdrgui/soapygui/stringrangegui.h
index 994fcf378..5a4ec9266 100644
--- a/sdrgui/soapygui/stringrangegui.h
+++ b/sdrgui/soapygui/stringrangegui.h
@@ -19,11 +19,13 @@
 
 #include <QWidget>
 
+#include "export.h"
+
 namespace Ui {
     class DiscreteRangeGUI;
 }
 
-class StringRangeGUI : public QWidget
+class SDRGUI_API StringRangeGUI : public QWidget
 {
     Q_OBJECT
 public: