diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c
index 89ca074ae861..d1064818c88c 100644
--- a/sys/amd64/amd64/machdep.c
+++ b/sys/amd64/amd64/machdep.c
@@ -468,7 +468,7 @@ sendsig(catcher, sig, mask, code)
 		sf.sf_siginfo = (register_t)&sfp->sf_si;
 		sf.sf_ahu.sf_action = (__siginfohandler_t *)catcher;
 
-		/* Fill siginfo structure. */
+		/* Fill in POSIX parts */
 		sf.sf_si.si_signo = sig;
 		sf.sf_si.si_code = code;
 		sf.sf_si.si_addr = (void *)regs->tf_err;
diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c
index 89ca074ae861..d1064818c88c 100644
--- a/sys/i386/i386/machdep.c
+++ b/sys/i386/i386/machdep.c
@@ -468,7 +468,7 @@ sendsig(catcher, sig, mask, code)
 		sf.sf_siginfo = (register_t)&sfp->sf_si;
 		sf.sf_ahu.sf_action = (__siginfohandler_t *)catcher;
 
-		/* Fill siginfo structure. */
+		/* Fill in POSIX parts */
 		sf.sf_si.si_signo = sig;
 		sf.sf_si.si_code = code;
 		sf.sf_si.si_addr = (void *)regs->tf_err;