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-rw-r--r--inet/rcmd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/inet/rcmd.c b/inet/rcmd.c
index fe73342424..d8524f93c8 100644
--- a/inet/rcmd.c
+++ b/inet/rcmd.c
@@ -574,7 +574,7 @@ __ivaliduser2(hostf, raddr, luser, ruser, rhost)
 	}
 
 	for (;*p && !isspace(*p); ++p) {
-	    *p = tolower (*p);
+	    *p = _tolower (*p);
 	}
 
 	/* Next we want to find the permitted name for the remote user.  */