diff --git a/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c b/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
index 24fc4eae57..e5f6453f43 100644
--- a/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
+++ b/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
@@ -564,7 +564,7 @@ void lcd_update_rect(int x, int y, int width, int height)
         lcd_write_data(ptr, width);
         ptr += LCD_WIDTH;
     }
-    while (--height > 0);
+    while (--height >= 0);
 
     lcd_busy = false;
 } /* lcd_update_rect */
diff --git a/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c b/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
index c22382f19c..3fe3037adc 100644
--- a/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
+++ b/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
@@ -411,7 +411,7 @@ void lcd_update_rect(int x, int y, int width, int height)
         lcd_write_data(ptr, width);
         ptr += LCD_WIDTH;
     }
-    while (--height > 0);
+    while (--height >= 0);
     lcd_busy = false;
 }