diff --git a/xcm/xcm-builder/src/location_conversion.rs b/xcm/xcm-builder/src/location_conversion.rs
index 3522f18dc1d0..1fc5a2582f5f 100644
--- a/xcm/xcm-builder/src/location_conversion.rs
+++ b/xcm/xcm-builder/src/location_conversion.rs
@@ -45,6 +45,7 @@ pub const FOREIGN_CHAIN_PREFIX_RELAY: [u8; 36] = *b"ForeignChainAliasAccountPref
 /// ## Example
 /// Assuming the following network layout.
 ///
+/// ```notrust
 ///              R
 ///           /    \
 ///          /      \   
@@ -52,7 +53,7 @@ pub const FOREIGN_CHAIN_PREFIX_RELAY: [u8; 36] = *b"ForeignChainAliasAccountPref
 ///        / \       / \
 ///       /   \     /   \
 ///     P1.1 P1.2  P2.1  P2.2
-///
+/// ```
 /// Then a given account A will have the same alias accounts in the
 /// same plane. So, it is important which chain account A acts from.
 /// E.g.