diff --git a/eclass/ruby-utils.eclass b/eclass/ruby-utils.eclass
index 29eabc8bb1c9d..9f0f7e6c04b00 100644
--- a/eclass/ruby-utils.eclass
+++ b/eclass/ruby-utils.eclass
@@ -36,14 +36,14 @@ esac
 RUBY_TARGETS_PREFERENCE="ruby32 ruby33 "
 
 # All other active ruby targets
-RUBY_TARGETS_PREFERENCE+="ruby34"
+RUBY_TARGETS_PREFERENCE+="ruby34 ruby40"
 
 _ruby_implementation_depend() {
 	local rubypn=
 	local rubyslot=
 
 	case $1 in
-		ruby1[89]|ruby2[0-7]|ruby3[0-4])
+		ruby1[89]|ruby2[0-7]|ruby3[0-4]|ruby40)
 			rubypn="dev-lang/ruby"
 			rubyslot=":${1:4:1}.${1:5}"
 			;;