diff --git a/src/previewbase_global.h b/src/previewbase_global.h
new file mode 100644
index 0000000..5d969f5
--- /dev/null
+++ b/src/previewbase_global.h
@@ -0,0 +1,12 @@
+#ifndef PREVIEWBASE_GLOBAL_H
+#define PREVIEWBASE_GLOBAL_H
+
+#include <QtCore/qglobal.h>
+
+#if defined(PREVIEWBASE_LIBRARY)
+#  define PREVIEWBASESHARED_EXPORT Q_DECL_EXPORT
+#else
+#  define PREVIEWBASESHARED_EXPORT Q_DECL_IMPORT
+#endif
+
+#endif // PREVIEWBASE_GLOBAL_H