diff --git a/dev-db/percona-server/percona-server-5.6.37.82.2-r2.ebuild b/dev-db/percona-server/percona-server-5.6.37.82.2-r2.ebuild
index 1381d7da22cf9..e56e97809f8b8 100644
--- a/dev-db/percona-server/percona-server-5.6.37.82.2-r2.ebuild
+++ b/dev-db/percona-server/percona-server-5.6.37.82.2-r2.ebuild
@@ -5,6 +5,8 @@ EAPI="6"
 MY_EXTRAS_VER="20171121-1518Z"
 SUBSLOT="18"
 PYTHON_COMPAT=( python2_7 )
+# Build fails with ninja
+CMAKE_MAKEFILE_GENERATOR="emake"
 inherit linux-info python-any-r1 mysql-multilib-r1 toolchain-funcs
 
 IUSE="numa pam tokudb tokudb-backup-plugin"