diff --git a/man3/strfmon.3 b/man3/strfmon.3
index f2434a7fa..98c8d34fe 100644
--- a/man3/strfmon.3
+++ b/man3/strfmon.3
@@ -28,9 +28,10 @@ strfmon, strfmon_l \- convert monetary value to a string
 .nf
 .B #include <monetary.h>
 .PP
-.BI "ssize_t strfmon(char *" s ", size_t " max ", const char *" format ", ...);"
-.BI "ssize_t strfmon_l(char *" s ", size_t " max ", locale_t " locale ,
-.BI "                  const char *" format ", ...);"
+.BI "ssize_t strfmon(char *restrict " s ", size_t " max ,
+.BI "                const char *restrict " format ", ...);"
+.BI "ssize_t strfmon_l(char *restrict " s ", size_t " max ", locale_t " locale ,
+.BI "                const char *restrict " format ", ...);"
 .fi
 .SH DESCRIPTION
 The