diff --git a/src/peripheralwidget.h b/src/peripheralwidget.h
--- a/src/peripheralwidget.h
+++ b/src/peripheralwidget.h
@@ -7,11 +7,17 @@
 #include <QList>
 #include <QTimer>
 #include "registerwidget.h"
+#if defined(LPPMON_SDK_BUILD)
+#  define LPPMON_SDK_EXPORT Q_DECL_EXPORT
+#else
+#  define LPPMON_SDK_EXPORT Q_DECL_IMPORT
+#endif
+
 /*
  * TODO ADD an outdated marker
  * Show outdated registers with a different color for example
 */
-class peripheralWidget : public QWidget
+class LPPMON_SDK_EXPORT peripheralWidget : public QWidget
 {
     Q_OBJECT
 public:
diff --git a/src/socregsviewer.h b/src/socregsviewer.h
--- a/src/socregsviewer.h
+++ b/src/socregsviewer.h
@@ -5,9 +5,13 @@
 #include <QtWidgets>
 #include "peripheralwidget.h"
 
-
+#if defined(LPPMON_SDK_BUILD)
+#  define LPPMON_SDK_EXPORT Q_DECL_EXPORT
+#else
+#  define LPPMON_SDK_EXPORT Q_DECL_IMPORT
+#endif
 
-class socRegsViewer : public QScrollArea
+class LPPMON_SDK_EXPORT socRegsViewer : public QScrollArea
 {
     Q_OBJECT
 public: