diff --git a/src/pkg/os/signal/sig.s b/src/pkg/os/signal/sig.s
index f860924aa0..c324fcda4e 100644
--- a/src/pkg/os/signal/sig.s
+++ b/src/pkg/os/signal/sig.s
@@ -4,13 +4,19 @@
 
 // Assembly to get into package runtime without using exported symbols.
 
-// +build amd64 amd64p32 arm 386
+// +build amd64 amd64p32 arm 386 power64 power64le
 
 #include "../../../cmd/ld/textflag.h"
 
 #ifdef GOARCH_arm
 #define JMP B
 #endif
+#ifdef GOARCH_power64
+#define JMP BR
+#endif
+#ifdef GOARCH_power64le
+#define JMP BR
+#endif
 
 TEXT ·signal_disable(SB),NOSPLIT,$0
 	JMP runtime·signal_disable(SB)