diff --git a/legacy/elementary/src/lib/Elementary.h.in b/legacy/elementary/src/lib/Elementary.h.in
index 1bfc43aaaa..47b1b90dec 100644
--- a/legacy/elementary/src/lib/Elementary.h.in
+++ b/legacy/elementary/src/lib/Elementary.h.in
@@ -5777,6 +5777,17 @@ extern "C" {
                     w, /**< Anchor geometry, relative to canvas */
                     h; /**< Anchor geometry, relative to canvas */
      };
+   /**
+    * @typedef Elm_Entry_Filter_Cb
+    * This callback type is used by entry filters to modify text.
+    * @param data The data specified as the last param when adding the filter
+    * @param entry The entry object
+    * @param text A pointer to the location of the text being filtered. This data can be modified,
+    * but any additional allocations must be managed by the user.
+    * @see elm_entry_text_filter_append
+    * @see elm_entry_text_filter_prepend
+    */
+   typedef void (*Elm_Entry_Filter_Cb)(void *data, Evas_Object *entry, char **text);
 
    /**
     * This adds an entry to @p parent object.
@@ -6210,7 +6221,7 @@ extern "C" {
     * @param func The function to use as text filter
     * @param data User data to pass to @p func
     */
-   EAPI void         elm_entry_text_filter_append(Evas_Object *obj, void (*func) (void *data, Evas_Object *entry, char **text), void *data) EINA_ARG_NONNULL(1, 2);
+   EAPI void         elm_entry_text_filter_append(Evas_Object *obj, Elm_Entry_Filter_Cb func, void *data) EINA_ARG_NONNULL(1, 2);
    /**
     * Prepend a filter function for text insdrted in the entry
     *
@@ -6221,7 +6232,7 @@ extern "C" {
     * @param func The function to use as text filter
     * @param data User data to pass to @p func
     */
-   EAPI void         elm_entry_text_filter_prepend(Evas_Object *obj, void (*func) (void *data, Evas_Object *entry, char **text), void *data) EINA_ARG_NONNULL(1, 2);
+   EAPI void         elm_entry_text_filter_prepend(Evas_Object *obj, Elm_Entry_Filter_Cb func, void *data) EINA_ARG_NONNULL(1, 2);
    /**
     * Remove a filter from the list
     *
@@ -6232,7 +6243,7 @@ extern "C" {
     * @param func The filter function to remove
     * @param data The user data passed when adding the function
     */
-   EAPI void         elm_entry_text_filter_remove(Evas_Object *obj, void (*func) (void *data, Evas_Object *entry, char **text), void *data) EINA_ARG_NONNULL(1, 2);
+   EAPI void         elm_entry_text_filter_remove(Evas_Object *obj, Elm_Entry_Filter_Cb func, void *data) EINA_ARG_NONNULL(1, 2);
    /**
     * This converts a markup (HTML-like) string into UTF-8.
     *
diff --git a/legacy/elementary/src/lib/elm_entry.c b/legacy/elementary/src/lib/elm_entry.c
index 8977fcbdd6..870afee6e5 100644
--- a/legacy/elementary/src/lib/elm_entry.c
+++ b/legacy/elementary/src/lib/elm_entry.c
@@ -83,7 +83,7 @@ struct _Elm_Entry_Item_Provider
 
 struct _Elm_Entry_Text_Filter
 {
-   void (*func) (void *data, Evas_Object *entry, char **text);
+   Elm_Entry_Filter_Cb func;
    void *data;
 };
 
@@ -340,7 +340,7 @@ _delay_write(void *data)
 }
 
 static Elm_Entry_Text_Filter *
-_filter_new(void (*func) (void *data, Evas_Object *entry, char **text), void *data)
+_filter_new(Elm_Entry_Filter_Cb func, void *data)
 {
    Elm_Entry_Text_Filter *tf = ELM_NEW(Elm_Entry_Text_Filter);
    if (!tf) return NULL;
@@ -2585,7 +2585,7 @@ elm_entry_item_provider_remove(Evas_Object *obj, Evas_Object *(*func) (void *dat
 }
 
 EAPI void
-elm_entry_text_filter_append(Evas_Object *obj, void (*func) (void *data, Evas_Object *entry, char **text), void *data)
+elm_entry_text_filter_append(Evas_Object *obj, Elm_Entry_Filter_Cb func, void *data)
 {
    Widget_Data *wd;
    Elm_Entry_Text_Filter *tf;
@@ -2602,7 +2602,7 @@ elm_entry_text_filter_append(Evas_Object *obj, void (*func) (void *data, Evas_Ob
 }
 
 EAPI void
-elm_entry_text_filter_prepend(Evas_Object *obj, void (*func) (void *data, Evas_Object *entry, char **text), void *data)
+elm_entry_text_filter_prepend(Evas_Object *obj, Elm_Entry_Filter_Cb func, void *data)
 {
    Widget_Data *wd;
    Elm_Entry_Text_Filter *tf;
@@ -2619,7 +2619,7 @@ elm_entry_text_filter_prepend(Evas_Object *obj, void (*func) (void *data, Evas_O
 }
 
 EAPI void
-elm_entry_text_filter_remove(Evas_Object *obj, void (*func) (void *data, Evas_Object *entry, char **text), void *data)
+elm_entry_text_filter_remove(Evas_Object *obj, Elm_Entry_Filter_Cb func, void *data)
 {
    Widget_Data *wd;
    Eina_List *l;