diff --git a/lv_conf_template.h b/lv_conf_template.h
index b933f3b5b..46a6fd19d 100644
--- a/lv_conf_template.h
+++ b/lv_conf_template.h
@@ -126,7 +126,12 @@ typedef int16_t lv_coord_t;
 /*1: Enable the Animations */
 #define LV_USE_ANIMATION        1
 #if LV_USE_ANIMATION
+
+/*Declare the type of the user data of animations (can be e.g. `void *`, `int`, `struct`)*/
 typedef void * lv_anim_user_data_t;
+
+/*Type of the animated value*/
+typedef int16_t lv_anim_value_t;
 #endif
 
 /* 1: Enable shadow drawing*/