Fix incorrect length check.
diff --git a/print-fr.c b/print-fr.c
index 68757b7..a1ee84f 100644
--- a/print-fr.c
+++ b/print-fr.c
@@ -812,7 +812,7 @@
 
         olen = length; /* preserve the original length for non verbose mode */
 
-	if (length < (u_int)(2 - is_ansi)) {
+	if (length < (u_int)(2 + is_ansi)) {
 		ND_PRINT((ndo, "[|q.933]"));
 		return;
 	}