diff --git a/src/runtime/os3_plan9.go b/src/runtime/os3_plan9.go
index e901b3e9dd..8c9cbe28ec 100644
--- a/src/runtime/os3_plan9.go
+++ b/src/runtime/os3_plan9.go
@@ -14,7 +14,9 @@ import (
 //
 //go:nowritebarrierrec
 func sighandler(_ureg *ureg, note *byte, gp *g) int {
-	_g_ := getg()
+	gsignal := getg()
+	mp := gsignal.m
+
 	var t sigTabT
 	var docrash bool
 	var sig int
@@ -61,7 +63,7 @@ func sighandler(_ureg *ureg, note *byte, gp *g) int {
 	if flags&_SigPanic != 0 {
 		// Copy the error string from sigtramp's stack into m->notesig so
 		// we can reliably access it from the panic routines.
-		memmove(unsafe.Pointer(_g_.m.notesig), unsafe.Pointer(note), uintptr(len(notestr)+1))
+		memmove(unsafe.Pointer(mp.notesig), unsafe.Pointer(note), uintptr(len(notestr)+1))
 		gp.sig = uint32(sig)
 		gp.sigpc = c.pc()
 
@@ -120,8 +122,8 @@ func sighandler(_ureg *ureg, note *byte, gp *g) int {
 		return _NCONT
 	}
 Throw:
-	_g_.m.throwing = throwTypeRuntime
-	_g_.m.caughtsig.set(gp)
+	mp.throwing = throwTypeRuntime
+	mp.caughtsig.set(gp)
 	startpanic_m()
 	print(notestr, "\n")
 	print("PC=", hex(c.pc()), "\n")