diff --git a/dev-python/build/build-1.2.2_p1.ebuild b/dev-python/build/build-1.2.2_p1.ebuild
index b99b7494fb84a..183bde40addce 100644
--- a/dev-python/build/build-1.2.2_p1.ebuild
+++ b/dev-python/build/build-1.2.2_p1.ebuild
@@ -5,7 +5,7 @@ EAPI=8
 
 DISTUTILS_USE_PEP517=flit
 PYTHON_TESTED=( python3_{10..13} pypy3 )
-PYTHON_COMPAT=( "${PYTHON_TESTED[@]}" )
+PYTHON_COMPAT=( "${PYTHON_TESTED[@]}" python3_13t )
 
 inherit distutils-r1