diff --git a/README.md b/README.md
index 85f5b52f..24bae84f 100644
--- a/README.md
+++ b/README.md
@@ -288,7 +288,7 @@ application.
 
 ### On FreeBSD:
 
-The project can be built from scratch by following instructions for Linux above.
+The project can be built from scratch by following instructions for Linux above. If you are running monero in a jail you need to add the flag: `allow.sysvipc=1` to your jail configuration, otherwise lmdb will throw the error message: `Failed to open lmdb environment: Function not implemented`.
 
 We expect to add Monero into the ports tree in the near future, which will aid in managing installations using ports or packages.