diff --git a/usr.bin/truss/main.c b/usr.bin/truss/main.c
index d46d01e58c0a..5eec9538f50c 100644
--- a/usr.bin/truss/main.c
+++ b/usr.bin/truss/main.c
@@ -111,7 +111,7 @@ main(int ac, char **av)
 			trussinfo->flags |= EXECVEARGS;
 			break;
 		case 'c': /* Count number of system calls and time. */
-			trussinfo->flags |= COUNTONLY;
+			trussinfo->flags |= (COUNTONLY | NOSIGS);
 			break;
 		case 'e': /* Print execve() environment strings. */
 			trussinfo->flags |= EXECVEENVS;
diff --git a/usr.bin/truss/truss.1 b/usr.bin/truss/truss.1
index 7c148df222e8..fb02cb4e75ab 100644
--- a/usr.bin/truss/truss.1
+++ b/usr.bin/truss/truss.1
@@ -1,6 +1,6 @@
 .\" $FreeBSD$
 .\"
-.Dd October 5, 2015
+.Dd October 9, 2015
 .Dt TRUSS 1
 .Os
 .Sh NAME
@@ -37,7 +37,7 @@ Show the argument strings that are passed in each
 .Xr execve 2
 system call.
 .It Fl c
-Do not display individual system calls.
+Do not display individual system calls or signals.
 Instead, before exiting, print a summary containing for each system call:
 the total system time used,
 the number of times the call was invoked,