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-rw-r--r--lib/libc/gen/siginterrupt.32
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/libc/gen/siginterrupt.3 b/lib/libc/gen/siginterrupt.3
index 79aed047fefa..9680a1523d42 100644
--- a/lib/libc/gen/siginterrupt.3
+++ b/lib/libc/gen/siginterrupt.3
@@ -106,7 +106,9 @@ The
call fails if:
.Bl -tag -width Er
.It Bq Er EINVAL
+The
.Fa sig
+argument
is not a valid signal number.
.El
.Sh SEE ALSO