diff --git a/mustang/doc/MustangWriter.java b/mustang/doc/MustangWriter.java
index ceed24e7..0f440de9 100644
--- a/mustang/doc/MustangWriter.java
+++ b/mustang/doc/MustangWriter.java
@@ -167,7 +167,7 @@ public class MustangWriter implements IZUGFeRDExportableTransaction {
 
 	@Override
 	public String getOwnBIC() {
-		return "COBADEFXXX";
+		return "COBADEFFXXX";
 	}
 
 	@Override
diff --git a/mustang/doc/ZugferdDev.de.odt b/mustang/doc/ZugferdDev.de.odt
index 3391da63..0db0d097 100644
Binary files a/mustang/doc/ZugferdDev.de.odt and b/mustang/doc/ZugferdDev.de.odt differ
diff --git a/mustang/doc/ZugferdDev.en.odt b/mustang/doc/ZugferdDev.en.odt
index b528ec57..1377da4d 100644
Binary files a/mustang/doc/ZugferdDev.en.odt and b/mustang/doc/ZugferdDev.en.odt differ