diff --git a/core/src/animation_sprite.c b/core/src/animation_sprite.c
index 53f972b..9c9e240 100644
--- a/core/src/animation_sprite.c
+++ b/core/src/animation_sprite.c
@@ -23,6 +23,8 @@ AnimationSprite* animation_sprite_new(Spritesheet* sheet, float framerate) {
 		.start_time = game_time(),
 		.sprite = sprite_from_spritesheet(sheet, 0)
 	};
+
+	return self;
 }
 
 void animation_sprite_destroy(AnimationSprite* self) {
@@ -52,6 +54,6 @@ void animation_sprite_set_framerate(AnimationSprite* self, float framerate) {
 	self->frame_interval = 1.0f / framerate;
 }
 
-float animation_sprite_get_framerate(AnimationSprite* self) {
+float animation_sprite_get_framerate(const AnimationSprite* self) {
 	return 1.0f / self->frame_interval;
 }