diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S
index 5a4215c4b0146aa063fe87c5bb503a398232f6d3..f1c4dfc635be20380d6a718d420cb83b6e4a6068 100644
--- a/arch/powerpc/boot/crt0.S
+++ b/arch/powerpc/boot/crt0.S
@@ -13,6 +13,7 @@
 
 	.text
 	/* a procedure descriptor used when booting this as a COFF file */
+	.globl	_zimage_start_opd
 _zimage_start_opd:
 	.long	_zimage_start, 0, 0, 0