diff --git a/Errorcodes b/Errorcodes
index d62c3ae..bb412dd 100644
--- a/Errorcodes
+++ b/Errorcodes
@@ -79,4 +79,5 @@
 
 * 900 - 999 - Corpus Data errors
 952: "Given offset information is not numeric"
-953: "Given offset information is incomplete"
\ No newline at end of file
+953: "Given offset information is incomplete"
+970: "Invalid foundry requested"
\ No newline at end of file