diff --git a/dev-lang/lua/lua-5.1.5-r109.ebuild b/dev-lang/lua/lua-5.1.5-r109.ebuild
index 388c7d235653e..2ea70e4d13bf4 100644
--- a/dev-lang/lua/lua-5.1.5-r109.ebuild
+++ b/dev-lang/lua/lua-5.1.5-r109.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit portability toolchain-funcs
+inherit optfeature portability toolchain-funcs
 
 DESCRIPTION="A powerful light-weight programming language designed for extending applications"
 HOMEPAGE="https://www.lua.org/"
@@ -141,9 +141,5 @@ src_test() {
 pkg_postinst() {
 	eselect lua set --if-unset "${PN}${SLOT}"
 
-	if has_version "app-editors/emacs"; then
-		if ! has_version "app-emacs/lua-mode"; then
-			einfo "Install app-emacs/lua-mode for lua support for emacs"
-		fi
-	fi
+	optfeature "Lua support for Emacs" app-emacs/lua-mode
 }
diff --git a/dev-lang/lua/lua-5.3.6-r5.ebuild b/dev-lang/lua/lua-5.3.6-r5.ebuild
index 205024f2f1205..184897a102ea5 100644
--- a/dev-lang/lua/lua-5.3.6-r5.ebuild
+++ b/dev-lang/lua/lua-5.3.6-r5.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit autotools portability toolchain-funcs
+inherit autotools optfeature portability toolchain-funcs
 
 DESCRIPTION="A powerful light-weight programming language designed for extending applications"
 HOMEPAGE="https://www.lua.org/"
@@ -183,9 +183,5 @@ src_test() {
 pkg_postinst() {
 	eselect lua set --if-unset "${PN}${SLOT}"
 
-	if has_version "app-editors/emacs"; then
-		if ! has_version "app-emacs/lua-mode"; then
-			einfo "Install app-emacs/lua-mode for lua support for emacs"
-		fi
-	fi
+	optfeature "Lua support for Emacs" app-emacs/lua-mode
 }
diff --git a/dev-lang/lua/lua-5.4.4-r2.ebuild b/dev-lang/lua/lua-5.4.4-r2.ebuild
index 0ac972b9b8bcd..1a424fc27bb1a 100644
--- a/dev-lang/lua/lua-5.4.4-r2.ebuild
+++ b/dev-lang/lua/lua-5.4.4-r2.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit autotools portability toolchain-funcs
+inherit autotools optfeature portability toolchain-funcs
 
 DESCRIPTION="A powerful light-weight programming language designed for extending applications"
 HOMEPAGE="https://www.lua.org/"
@@ -180,9 +180,5 @@ src_test() {
 pkg_postinst() {
 	eselect lua set --if-unset "${PN}${SLOT}"
 
-	if has_version "app-editors/emacs"; then
-		if ! has_version "app-emacs/lua-mode"; then
-			einfo "Install app-emacs/lua-mode for lua support for emacs"
-		fi
-	fi
+	optfeature "Lua support for Emacs" app-emacs/lua-mode
 }