diff --git a/src/character.c b/src/character.c
index bfa20cd..bff324d 100644
--- a/src/character.c
+++ b/src/character.c
@@ -388,20 +388,20 @@ SYMBOL_EXPORT void AnimateCharacter(struct Game* game, struct Character* charact
 			if (character->repeats > 0) {
 				character->repeats--;
 				if (character->callback) {
-					character->callback(game, character, NULL, character->spritesheet->name, character->callbackData);
+					character->callback(game, character, NULL, character->spritesheet, character->callbackData);
 				}
 			} else {
 				if ((!character->reversed) && (character->successor)) {
-					char* old = character->spritesheet->name;
+					struct Spritesheet* old = character->spritesheet;
 					SelectSpritesheet(game, character, character->successor);
 					if (character->callback) {
-						character->callback(game, character, character->spritesheet->name, old, character->callbackData);
+						character->callback(game, character, character->spritesheet, old, character->callbackData);
 					}
 				} else if ((character->reversed) && (character->predecessor)) {
-					char* old = character->spritesheet->name;
+					struct Spritesheet* old = character->spritesheet;
 					SelectSpritesheet(game, character, character->predecessor);
 					if (character->callback) {
-						character->callback(game, character, character->spritesheet->name, old, character->callbackData);
+						character->callback(game, character, character->spritesheet, old, character->callbackData);
 					}
 				} else {
 					if (character->repeats == 0) {
@@ -411,7 +411,7 @@ SYMBOL_EXPORT void AnimateCharacter(struct Game* game, struct Character* charact
 							character->pos = character->spritesheet->frameCount - 1;
 						}
 						if (character->callback) {
-							character->callback(game, character, NULL, character->spritesheet->name, character->callbackData);
+							character->callback(game, character, NULL, character->spritesheet, character->callbackData);
 						}
 					}
 				}
diff --git a/src/character.h b/src/character.h
index 9a70f6f..916b85c 100644
--- a/src/character.h
+++ b/src/character.h
@@ -94,7 +94,7 @@ struct Character {
 	bool reversed; /*!< Whether the current animation has been requested as reversed. */
 	bool hidden;
 	void* data; /*!< Additional, custom character data (HP etc.). */
-	void (*callback)(struct Game*, struct Character*, char* newAnim, char* oldAnim, void*);
+	void (*callback)(struct Game*, struct Character*, struct Spritesheet* newAnim, struct Spritesheet* oldAnim, void*);
 	void* callbackData;
 	bool shared; /*!< Marks the list of spritesheets as shared, so it won't be freed together with the character. */
 	ALLEGRO_TRANSFORM transform;