diff --git a/lib/sp-visualizer-ticks.c b/lib/sp-visualizer-ticks.c
index cfa5f880..26665edf 100644
--- a/lib/sp-visualizer-ticks.c
+++ b/lib/sp-visualizer-ticks.c
@@ -34,7 +34,7 @@ struct _SpVisualizerTicks
   gint64 epoch;
   gint64 begin_time;
   gint64 end_time;
-};
+} __attribute__((aligned(8)));
 
 enum {
   TICK_MINUTES,
diff --git a/lib/sp-visualizer-ticks.h b/lib/sp-visualizer-ticks.h
index ed7d2829..5efeee36 100644
--- a/lib/sp-visualizer-ticks.h
+++ b/lib/sp-visualizer-ticks.h
@@ -25,8 +25,6 @@ G_BEGIN_DECLS
 
 #define SP_TYPE_VISUALIZER_TICKS (sp_visualizer_ticks_get_type())
 
-typedef struct _SpVisualizerTicks SpVisualizerTicks __attribute__((aligned(8)));
-
 G_DECLARE_FINAL_TYPE (SpVisualizerTicks, sp_visualizer_ticks, SP, VISUALIZER_TICKS, GtkDrawingArea)
 
 GtkWidget *sp_visualizer_ticks_new            (void);
diff --git a/lib/sp-zoom-manager.h b/lib/sp-zoom-manager.h
index 719b3c08..ca2a7865 100644
--- a/lib/sp-zoom-manager.h
+++ b/lib/sp-zoom-manager.h
@@ -25,8 +25,6 @@ G_BEGIN_DECLS
 
 #define SP_TYPE_ZOOM_MANAGER (sp_zoom_manager_get_type())
 
-typedef struct _SpZoomManager SpZoomManager __attribute__((aligned(8)));
-
 G_DECLARE_FINAL_TYPE (SpZoomManager, sp_zoom_manager, SP, ZOOM_MANAGER, GObject)
 
 SpZoomManager *sp_zoom_manager_new              (void);