diff --git a/lv_themes/lv_theme.c b/lv_themes/lv_theme.c
index 2090529f6..bbdca6e4c 100644
--- a/lv_themes/lv_theme.c
+++ b/lv_themes/lv_theme.c
@@ -34,10 +34,8 @@ static lv_theme_t * current_theme;
  * This way the theme styles will always point to the same memory address even after theme is change.
  * (The pointers in the theme points to the styles declared by the theme itself) */
 
-/* Store the styles in this array.
- * Can't determine the size in compile time because sizeof is not evaluated (should be `sizeof(lv_theme_t) / sizeof(lv_style_t*)`).
- * Error will be generated in run time if too small.*/
-static lv_style_t th_styles[120];
+/* Store the styles in this array. */
+static lv_style_t th_styles[sizeof(((lv_theme_t *)0)->style) / sizeof(lv_style_t *)];
 static bool inited = false;
 static lv_theme_t current_theme;
 #endif
@@ -63,12 +61,6 @@ void lv_theme_set_current(lv_theme_t * th)
     uint32_t style_num = sizeof(th->style) / sizeof(lv_style_t *);     /*Number of styles in a theme*/
 
     if(!inited) {
-        /*It's not sure `th_styles` is big enough. Check it now!*/
-        if(style_num > sizeof(th_styles) / sizeof(lv_style_t)) {
-            LV_LOG_ERROR("Themes: th_styles array is too small. Increase it's size!");
-            while(1);
-        }
-
         /*Initialize the style pointers `current_theme` to point to the `th_styles` style array */
         uint16_t i;
         lv_style_t ** cur_th_style_p = (lv_style_t **) &current_theme.style;