diff --git a/2001/ollinger/README.md b/2001/ollinger/README.md
index ed2d484ff..d763ff02a 100644
--- a/2001/ollinger/README.md
+++ b/2001/ollinger/README.md
@@ -16,6 +16,10 @@ make
 ./ollinger integer
 ```
 
+### INABIAF - it's not a bug it's a feature! :-)
+
+This program will very likely crash or do something else without an arg.
+
 ## Try:
 
 ```sh
diff --git a/bugs.md b/bugs.md
index d091be31a..12d902b96 100644
--- a/bugs.md
+++ b/bugs.md
@@ -1351,6 +1351,13 @@ points.
 Although it is independent of endianness both systems need the same character
 set. In other words both have to be ASCII or EBCDIC - not one of each.
 
+## [2001/ollinger](2001/ollinger/ollinger.c) ([README.md)(2001/ollinger/README.md))
+## STATUS: INABIAF - please **DO NOT** fix
+
+This program will very likely crash or do something else without an arg.
+
+
+
 ## [2001/schweikh](2001/schweikh/schweikh.c) ([README.md](2001/schweikh/README.md))
 ## STATUS: INABIAF - please **DO NOT** fix