src/runtime/rt0_linux_ppc64.s | 1 +

diff --git a/src/runtime/rt0_linux_ppc64.s b/src/runtime/rt0_linux_ppc64.s
index 897d61052a823c797d74f5baf00741a55ec29991..c9300a9caf602f8b3863b0b15e621ddfe4fe0955 100644
--- a/src/runtime/rt0_linux_ppc64.s
+++ b/src/runtime/rt0_linux_ppc64.s
@@ -22,6 +22,7 @@ 	// sequence of string pointers followed by a NULL, and auxv.
 	// There is no TLS base pointer.
 	//
 	// TODO(austin): Support ABI v1 dynamic linking entry point
+	XOR	R0, R0 // Note, newer kernels may not always set R0 to 0.
 	MOVD	$runtime·rt0_go(SB), R12
 	MOVD	R12, CTR
 	MOVBZ	runtime·iscgo(SB), R5