diff --git a/usr.bin/systat/sysput.c b/usr.bin/systat/sysput.c
index bccc00f6516..ae05a1bfe11 100644
--- a/usr.bin/systat/sysput.c
+++ b/usr.bin/systat/sysput.c
@@ -76,10 +76,9 @@ sysputXs(WINDOW *wd __unused, int row, int lcol, int width)
 void
 sysputuint64(WINDOW *wd, int row, int lcol, int width, uint64_t val, int flags)
 {
-	char unit, *start, wrtbuf[width + width + 1];
+	char *start, wrtbuf[width + width + 1];
 	int len;
 
-	unit = 0;
 	start = wrtbuf;
 	flags |= HN_NOSPACE;