diff --git a/lib/css/include/css/types.h b/lib/css/include/css/types.h
index cf99d78f4..4985ca765 100644
--- a/lib/css/include/css/types.h
+++ b/lib/css/include/css/types.h
@@ -165,7 +165,7 @@ typedef enum {
 	CSS_BACKGROUND_SIZE_INHERIT,
 	CSS_BACKGROUND_SIZE_SET,
 	CSS_BACKGROUND_SIZE_AUTO,
-	CSS_BACKGROUND_SIZE_CONVER,
+	CSS_BACKGROUND_SIZE_COVER,
 	CSS_BACKGROUND_SIZE_CONTAIN
 } css_background_size_t;
 
diff --git a/lib/css/src/properties/background.c b/lib/css/src/properties/background.c
index 5b6f8ba55..28165980a 100644
--- a/lib/css/src/properties/background.c
+++ b/lib/css/src/properties/background.c
@@ -102,7 +102,7 @@ static int css_cascade_background_size_1(const css_style_array_value_t input,
                         break;
                 case CSS_KEYWORD_COVER:
                         s->type_bits.background_width =
-                            CSS_BACKGROUND_SIZE_CONVER;
+                            CSS_BACKGROUND_SIZE_COVER;
                         break;
                 case CSS_KEYWORD_CONTAIN:
                         s->type_bits.background_width =
diff --git a/lib/ui/src/ui_widget_style.c b/lib/ui/src/ui_widget_style.c
index c4ab7c666..2a859d4ca 100644
--- a/lib/ui/src/ui_widget_style.c
+++ b/lib/ui/src/ui_widget_style.c
@@ -1,4 +1,4 @@
-/*
+/*
  * lib/ui/src/ui_widget_style.c
  *
  * Copyright (c) 2023-2024, Liu Chao <i@lc-soft.io> All rights reserved.
@@ -269,7 +269,7 @@ static void ui_widget_on_image_load(ui_image_t *loaded_image, void *data)
         CSS_COPY_LENGTH(s, &w->specified_style, background_position_x);
         CSS_COPY_LENGTH(s, &w->specified_style, background_position_y);
         switch (s->type_bits.background_width) {
-        case CSS_BACKGROUND_SIZE_CONVER:
+        case CSS_BACKGROUND_SIZE_COVER:
                 scale = 1.f * w->padding_box.width / img->width;
                 scale = y_max(scale, 1.f * w->padding_box.height / img->height);
                 CSS_SET_FIXED_LENGTH(s, background_width, scale * img->width);