diff --git a/ewmh.c b/ewmh.c
index 12d308bb..52f362ca 100644
--- a/ewmh.c
+++ b/ewmh.c
@@ -506,6 +506,10 @@ ewmh_check_client_hints(client_t *c)
     p_delete(&reply);
 }
 
+/** Get NET_WM_ICON.
+ * \param w The window.
+ * \return A netwm_icon_t structure which must be deleted after usage.
+ */
 netwm_icon_t *
 ewmh_get_window_icon(xcb_window_t w)
 {
diff --git a/ewmh.h b/ewmh.h
index 7d36d619..78805166 100644
--- a/ewmh.h
+++ b/ewmh.h
@@ -31,6 +31,13 @@ typedef struct
     unsigned char *image;
 } netwm_icon_t;
 
+static inline void
+netwm_icon_delete(netwm_icon_t **i)
+{
+    p_delete(&(*i)->image);
+    p_delete(i);
+}
+
 void ewmh_init(int);
 void ewmh_update_net_client_list(int);
 void ewmh_update_net_numbers_of_desktop(int);
diff --git a/widgets/tasklist.c b/widgets/tasklist.c
index 9e5e4e5e..3086a284 100644
--- a/widgets/tasklist.c
+++ b/widgets/tasklist.c
@@ -219,8 +219,7 @@ tasklist_draw(draw_context_t *ctx, int screen,
                                           w->area.y,
                                           icon->width, icon->height,
                                           ctx->height, icon->image);
-                p_delete(&icon->image);
-                p_delete(&icon);
+                netwm_icon_delete(&icon);
             }
         }
         else