diff --git a/documentation/migration-guides/migration-4.3.rst b/documentation/migration-guides/migration-4.3.rst
index 40150d888a..60aea25217 100644
--- a/documentation/migration-guides/migration-4.3.rst
+++ b/documentation/migration-guides/migration-4.3.rst
@@ -129,6 +129,7 @@ The following variables have been removed:
 -  ``AUTHOR``
 -  ``PERLARCH``
 -  ``PERLVERSION``
+-  ``QEMU_USE_SLIRP``
 
 .. _migration-4.3-removed-recipes: