diff --git a/stand/uboot/common/main.c b/stand/uboot/common/main.c
index 114fcaa64222..c7ca501c7a45 100644
--- a/stand/uboot/common/main.c
+++ b/stand/uboot/common/main.c
@@ -42,7 +42,7 @@ __FBSDID("$FreeBSD$");
 #endif
 
 #ifndef HEAP_SIZE
-#define	HEAP_SIZE	(1 * 1024 * 1024)
+#define	HEAP_SIZE	(2 * 1024 * 1024)
 #endif
 
 struct uboot_devdesc currdev;