diff --git a/tooltipmanager.h b/tooltipmanager.h
index bf486b272..cd6056f77 100644
--- a/tooltipmanager.h
+++ b/tooltipmanager.h
@@ -68,7 +68,7 @@ namespace Plasma
      /**
       * Content of a tooltip
       */
-      struct ToolTipContent
+      struct PLASMA_EXPORT ToolTipContent
       {
           ToolTipContent();
           bool isEmpty() const;