diff --git a/os/access.c b/os/access.c
index 1daa36162..616a84b94 100644
--- a/os/access.c
+++ b/os/access.c
@@ -1879,7 +1879,7 @@ siHostnameCheckAddr(const char *valueString, int length, void *typePriv)
                     dotAllowed = FALSE;
                 }
             }
-            else if (((c >= 0x30) && (c <= 0x3A)) /* 0-9 */ ||
+            else if (((c >= 0x30) && (c <= 0x39)) /* 0-9 */ ||
                      ((c >= 0x61) && (c <= 0x7A)) /* a-z */ ||
                      ((c >= 0x41) && (c <= 0x5A)) /* A-Z */ ) {
                 dotAllowed = TRUE;