diff --git a/extmod/modtrezorui/display-stmhal.h b/extmod/modtrezorui/display-stmhal.h
index 95e9b9a93c..f12e2d3fd7 100644
--- a/extmod/modtrezorui/display-stmhal.h
+++ b/extmod/modtrezorui/display-stmhal.h
@@ -241,7 +241,7 @@ void display_init(void) {
     display_orientation(0);
     display_backlight(0);
     // clear buffer
-    display_bar(0, 0, DISPLAY_RESX, DISPLAY_RESY, 0x0000);
+    display_clear();
     display_unsleep();
 }