diff --git a/legacy/elementary/src/lib/Elementary.h.in b/legacy/elementary/src/lib/Elementary.h.in
index 3cbccbe0e2..10af1f13b9 100644
--- a/legacy/elementary/src/lib/Elementary.h.in
+++ b/legacy/elementary/src/lib/Elementary.h.in
@@ -178,7 +178,7 @@ EAPI extern Elm_Version *elm_version;
 #include <elm_box.h>
 
 // Daniel Juyung Seo
-#include <elm_bubble.h> // <-- up to here (1.0 review)
+#include <elm_bubble.h> // comments in elm_bubble.h
 #include <elm_button.h>
 #include <elm_cache.h>
 #include <elm_calendar.h>
@@ -189,7 +189,7 @@ EAPI extern Elm_Version *elm_version;
 #include <elm_config.h>
 #include <elm_conform.h>
 #include <elm_cursor.h>
-#include <elm_debug.h>
+#include <elm_debug.h> // OK
 #include <elm_diskselector.h>
 
 // Chuneon Park
diff --git a/legacy/elementary/src/lib/elm_bubble.h b/legacy/elementary/src/lib/elm_bubble.h
index 57a0a40de4..d085a99b19 100644
--- a/legacy/elementary/src/lib/elm_bubble.h
+++ b/legacy/elementary/src/lib/elm_bubble.h
@@ -77,6 +77,7 @@ EAPI Evas_Object                 *elm_bubble_add(Evas_Object *parent);
  * @li "bottom_left"
  * @li "bottom_right"
  */
+// XXX: use enum for corner parameter instead of const char *
 EAPI void                         elm_bubble_corner_set(Evas_Object *obj, const char *corner);
 
 /**
@@ -87,6 +88,7 @@ EAPI void                         elm_bubble_corner_set(Evas_Object *obj, const
  *
  * This function gets the selected corner of the bubble.
  */
+// XXX: use enum for return value instead of const char *
 EAPI const char                  *elm_bubble_corner_get(const Evas_Object *obj);
 
 /**
diff --git a/legacy/elementary/src/lib/elm_debug.h b/legacy/elementary/src/lib/elm_debug.h
index ef9cdffc07..c81c666ae1 100644
--- a/legacy/elementary/src/lib/elm_debug.h
+++ b/legacy/elementary/src/lib/elm_debug.h
@@ -1,6 +1,6 @@
 /**
  * @defgroup Debug Debug
- * don't use it unless you are sure
+ * Don't use it unless you are sure.
  *
  * @{
  */