diff --git a/zooid/config.go b/zooid/config.go
index a7369ca..b810f6d 100644
--- a/zooid/config.go
+++ b/zooid/config.go
@@ -31,8 +31,8 @@ type Config struct {
 	} `toml:"policy"`
 
 	Groups struct {
-		Enabled   bool `toml:"enabled"`
-		AutoJoin  bool `toml:"auto_join"`
+		Enabled  bool `toml:"enabled"`
+		AutoJoin bool `toml:"auto_join"`
 	} `toml:"groups"`
 
 	Management struct {
diff --git a/zooid/groups.go b/zooid/groups.go
index cc55248..b7af79a 100644
--- a/zooid/groups.go
+++ b/zooid/groups.go
@@ -283,9 +283,9 @@ func (g *GroupStore) CheckWrite(event nostr.Event) string {
 	meta, found := g.GetMetadata(h)
 
 	if event.Kind == nostr.KindSimpleGroupCreateGroup {
-  	if found {
-  		return "invalid: that group already exists"
-  	}
+		if found {
+			return "invalid: that group already exists"
+		}
 	} else if !found {
 		return "invalid: group not found"
 	}
@@ -299,19 +299,19 @@ func (g *GroupStore) CheckWrite(event nostr.Event) string {
 	}
 
 	if event.Kind == nostr.KindSimpleGroupJoinRequest {
-  	if g.IsMember(h, event.PubKey) {
-  		return "duplicate: already a member"
-  	} else {
-      return ""
-  	}
+		if g.IsMember(h, event.PubKey) {
+			return "duplicate: already a member"
+		} else {
+			return ""
+		}
 	}
 
 	if event.Kind == nostr.KindSimpleGroupLeaveRequest {
-  	if !g.IsMember(h, event.PubKey) {
-  		return "duplicate: not currently a member"
-  	} else {
-      return ""
-  	}
+		if !g.IsMember(h, event.PubKey) {
+			return "duplicate: not currently a member"
+		} else {
+			return ""
+		}
 	}
 
 	if HasTag(meta.Tags, "closed") && !g.HasAccess(h, event.PubKey) {
diff --git a/zooid/management.go b/zooid/management.go
index 1513862..4b6f118 100644
--- a/zooid/management.go
+++ b/zooid/management.go
@@ -298,6 +298,10 @@ func (m *ManagementStore) AllowPubkey(pubkey nostr.PubKey) error {
 // Joining
 
 func (m *ManagementStore) ValidateJoinRequest(event nostr.Event) (reject bool, err string) {
+	if m.IsMember(event.PubKey) {
+		return false, ""
+	}
+
 	if m.PubkeyIsBanned(event.PubKey) {
 		return true, "invalid: you have been banned from this relay"
 	}