diff --git a/programs/system/mgb/trunk/mgb.asm b/programs/system/mgb/trunk/mgb.asm
index b97370b45f..79701eb2c8 100644
--- a/programs/system/mgb/trunk/mgb.asm
+++ b/programs/system/mgb/trunk/mgb.asm
@@ -246,9 +246,9 @@ align 4
 	jb	@r
 align 4
 @@:
-	push	esi
+	push	esi edi
 	call	dword [esi]
-	pop	esi
+	pop	edi esi
 	inc	edi
 	mcall	26,9
 	cmp	eax,[dwTestEndTime]