diff --git a/app/bot/bot.go b/app/bot/bot.go
index b7cedf7..43bf052 100644
--- a/app/bot/bot.go
+++ b/app/bot/bot.go
@@ -12,6 +12,7 @@ import (
 	"github.com/etcinit/phabulous/app/modules/core"
 	"github.com/etcinit/phabulous/app/modules/dev"
 	"github.com/etcinit/phabulous/app/modules/extension"
+	"github.com/jacobstr/confer"
 	"github.com/nlopes/slack"
 )
 
@@ -234,6 +235,11 @@ func (b *Bot) MakeSlack() *slack.Client {
 	return b.Slacker.Slack
 }
 
+// MakeConfig returns an instance of the configuration store.
+func (b *Bot) MakeConfig() *confer.Config {
+	return b.Slacker.Config
+}
+
 // HandleUsage shows usage tip.
 func (b *Bot) HandleUsage(ev *slack.MessageEvent, matches []string) {
 	b.Slacker.SimplePost(
diff --git a/app/modules/core/command_summon.go b/app/modules/core/command_summon.go
index 166c9e6..e1ec390 100644
--- a/app/modules/core/command_summon.go
+++ b/app/modules/core/command_summon.go
@@ -6,6 +6,8 @@ import (
 	"strings"
 
 	"github.com/etcinit/gonduit/requests"
+	"github.com/etcinit/phabulous/app/gonduit/extensions"
+	phabulousRequests "github.com/etcinit/phabulous/app/gonduit/extensions/requests"
 	"github.com/etcinit/phabulous/app/messages"
 	"github.com/etcinit/phabulous/app/modules"
 	"github.com/nlopes/slack"
@@ -94,9 +96,48 @@ func (c *SummonCommand) GetHandler() modules.Handler {
 			return
 		}
 
+		slackMap, err := extensions.PhabulousToSlack(
+			conn,
+			phabulousRequests.PhabulousToSlackRequest{
+				UserPHIDs: (*res)[0].Reviewers,
+			},
+		)
+		if err != nil {
+			s.Excuse(ev, err)
+			return
+		}
+
+		slackUsers, err := s.MakeSlack().GetUsers()
+		if err != nil {
+			s.Excuse(ev, err)
+			return
+		}
+
 		reviewerNames := []string{}
 
 		for _, reviewerPHID := range (*res)[0].Reviewers {
+			if slackUserInfo, ok := (*slackMap)[reviewerPHID]; ok {
+				var foundUser *slack.User
+				for _, user := range slackUsers {
+					if user.ID == slackUserInfo.AccountID {
+						foundUser = &user
+						break
+					}
+				}
+
+				if foundUser != nil {
+					reviewerNames = append(
+						reviewerNames,
+						fmt.Sprintf(
+							"@%s :slack:",
+							foundUser.Name,
+						),
+					)
+
+					continue
+				}
+			}
+
 			nameRes, err := conn.PHIDQuerySingle(reviewerPHID)
 			if err != nil {
 				s.Excuse(ev, err)
diff --git a/app/modules/extension/command_whois.go b/app/modules/extension/command_whois.go
index d83c711..fae9719 100644
--- a/app/modules/extension/command_whois.go
+++ b/app/modules/extension/command_whois.go
@@ -98,8 +98,8 @@ func toSlack(
 	if len(*accounts) == 0 {
 		s.Post(
 			ev.Channel,
-			"I was unable to find a Phabricator user linked with that "+
-				"Slack account. Make sure they are linked under "+
+			"I was unable to find a Slack user linked with that "+
+				"Phabricator account. Make sure they are linked under "+
 				"_External Accounts_ in the user's Phabricator settings.",
 			messages.IconTasks,
 			true,
diff --git a/app/modules/interfaces.go b/app/modules/interfaces.go
index 7401108..2ac9220 100644
--- a/app/modules/interfaces.go
+++ b/app/modules/interfaces.go
@@ -3,6 +3,7 @@ package modules
 import (
 	"github.com/etcinit/gonduit"
 	"github.com/etcinit/phabulous/app/messages"
+	"github.com/jacobstr/confer"
 	"github.com/nlopes/slack"
 )
 
@@ -22,6 +23,7 @@ type Service interface {
 	MakeGonduit() (*gonduit.Conn, error)
 	MakeRTM() *slack.RTM
 	MakeSlack() *slack.Client
+	MakeConfig() *confer.Config
 	GetModules() []Module
 }