diff --git a/dev-python/build/build-1.5.0.ebuild b/dev-python/build/build-1.5.0.ebuild
index 26d7680bf2bc2..80aa8258102d3 100644
--- a/dev-python/build/build-1.5.0.ebuild
+++ b/dev-python/build/build-1.5.0.ebuild
@@ -5,7 +5,7 @@ EAPI=8
 
 DISTUTILS_USE_PEP517=flit
 PYTHON_TESTED=( python3_{11..14} pypy3_11 )
-PYTHON_COMPAT=( "${PYTHON_TESTED[@]}" python3_{13,14}t )
+PYTHON_COMPAT=( "${PYTHON_TESTED[@]}" python3_15 python3_{13..15}t )
 
 inherit distutils-r1