diff --git a/lib/libc/compat-43/sigvec.2 b/lib/libc/compat-43/sigvec.2
index 1b5244f25fe3..6444a1bc9061 100644
--- a/lib/libc/compat-43/sigvec.2
+++ b/lib/libc/compat-43/sigvec.2
@@ -148,7 +148,7 @@ call (formerly
 .It Dv SIGKILL No "	terminate process" "	kill program"
 .It Dv SIGBUS No "	create core image" "	bus error"
 .It Dv SIGSEGV No "	create core image" "	segmentation violation"
-.It Dv SIGSYS No "	create core image" "	system call given invalid argument"
+.It Dv SIGSYS No "	create core image" "	non-existent system call invoked"
 .It Dv SIGPIPE No "	terminate process" "	write on a pipe with no reader"
 .It Dv SIGALRM No "	terminate process" "	real-time timer expired"
 .It Dv SIGTERM No "	terminate process" "	software termination signal"
diff --git a/lib/libc/gen/signal.3 b/lib/libc/gen/signal.3
index 86189f12e242..37ad60b64a8f 100644
--- a/lib/libc/gen/signal.3
+++ b/lib/libc/gen/signal.3
@@ -98,7 +98,7 @@ call (formerly
 .It Dv SIGKILL No "	terminate process" "	kill program"
 .It Dv SIGBUS No "	create core image" "	bus error"
 .It Dv SIGSEGV No "	create core image" "	segmentation violation"
-.It Dv SIGSYS No "	create core image" "	system call given invalid argument"
+.It Dv SIGSYS No "	create core image" "	non-existent system call invoked"
 .It Dv SIGPIPE No "	terminate process" "	write on a pipe with no reader"
 .It Dv SIGALRM No "	terminate process" "	real-time timer expired"
 .It Dv SIGTERM No "	terminate process" "	software termination signal"
diff --git a/lib/libc/sys/sigaction.2 b/lib/libc/sys/sigaction.2
index 3f41266a9c81..9412dd14396d 100644
--- a/lib/libc/sys/sigaction.2
+++ b/lib/libc/sys/sigaction.2
@@ -242,7 +242,7 @@ call (formerly
 .It Dv SIGKILL No "	terminate process" "	kill program"
 .It Dv SIGBUS No "	create core image" "	bus error"
 .It Dv SIGSEGV No "	create core image" "	segmentation violation"
-.It Dv SIGSYS No "	create core image" "	system call given invalid argument"
+.It Dv SIGSYS No "	create core image" "	non-existent system call invoked"
 .It Dv SIGPIPE No "	terminate process" "	write on a pipe with no reader"
 .It Dv SIGALRM No "	terminate process" "	real-time timer expired"
 .It Dv SIGTERM No "	terminate process" "	software termination signal"
diff --git a/sys/sys/_sigset.h b/sys/sys/_sigset.h
index 1c8f781c95b1..f718a371dc4b 100644
--- a/sys/sys/_sigset.h
+++ b/sys/sys/_sigset.h
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)signal.h	8.2 (Berkeley) 1/21/94
- * $Id: signal.h,v 1.4 1995/06/28 02:14:04 bde Exp $
+ * $Id: signal.h,v 1.5 1995/10/19 19:16:00 swallace Exp $
  */
 
 #ifndef	_SYS_SIGNAL_H_
@@ -68,7 +68,7 @@
 #endif
 #define	SIGSEGV	11	/* segmentation violation */
 #ifndef _POSIX_SOURCE
-#define	SIGSYS	12	/* bad argument to system call */
+#define	SIGSYS	12	/* non-existent system call invoked */
 #endif
 #define	SIGPIPE	13	/* write on a pipe with no one to read it */
 #define	SIGALRM	14	/* alarm clock */
diff --git a/sys/sys/signal.h b/sys/sys/signal.h
index 1c8f781c95b1..f718a371dc4b 100644
--- a/sys/sys/signal.h
+++ b/sys/sys/signal.h
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)signal.h	8.2 (Berkeley) 1/21/94
- * $Id: signal.h,v 1.4 1995/06/28 02:14:04 bde Exp $
+ * $Id: signal.h,v 1.5 1995/10/19 19:16:00 swallace Exp $
  */
 
 #ifndef	_SYS_SIGNAL_H_
@@ -68,7 +68,7 @@
 #endif
 #define	SIGSEGV	11	/* segmentation violation */
 #ifndef _POSIX_SOURCE
-#define	SIGSYS	12	/* bad argument to system call */
+#define	SIGSYS	12	/* non-existent system call invoked */
 #endif
 #define	SIGPIPE	13	/* write on a pipe with no one to read it */
 #define	SIGALRM	14	/* alarm clock */