diff --git a/app-editors/emacs/emacs-27.2-r16.ebuild b/app-editors/emacs/emacs-27.2-r16.ebuild
index 811b5cfa5e5bd..8606abac7305b 100644
--- a/app-editors/emacs/emacs-27.2-r16.ebuild
+++ b/app-editors/emacs/emacs-27.2-r16.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit autotools elisp-common readme.gentoo-r1 toolchain-funcs
+inherit autotools elisp-common flag-o-matic readme.gentoo-r1 toolchain-funcs
 
 if [[ ${PV##*.} = 9999 ]]; then
 	inherit git-r3