diff --git a/code/code.go b/code/code.go
index 1009d987..0757288c 100644
--- a/code/code.go
+++ b/code/code.go
@@ -9,6 +9,7 @@ package code
 
 import (
 	"fmt"
+	"io/fs"
 	"log"
 	"log/slog"
 	"os"
@@ -135,6 +136,12 @@ func (cv *Code) Init() {
 			tree.AddChildAt(w, "filetree", func(w *filetree.Tree) {
 				w.OpenDepth = 4
 				cv.Files = w
+				w.FilterFunc = func(path string, info fs.FileInfo) bool {
+					if info.Name() == ".DS_Store" {
+						return false
+					}
+					return true
+				}
 				w.FileNodeType = types.For[FileNode]()
 
 				w.OnSelect(func(e events.Event) {
diff --git a/go.mod b/go.mod
index f6004883..820e50e8 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module cogentcore.org/cogent
 go 1.22
 
 require (
-	cogentcore.org/core v0.3.3-0.20240825182959-fe4840922a21
+	cogentcore.org/core v0.3.3-0.20240829215614-d202a4746d8b
 	github.com/aandrew-me/tgpt/v2 v2.7.2
 	github.com/alecthomas/chroma/v2 v2.13.0
 	github.com/bogdanfinn/fhttp v0.5.27
diff --git a/go.sum b/go.sum
index 9b2e525e..0f0c2507 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-cogentcore.org/core v0.3.3-0.20240825182959-fe4840922a21 h1:tffR0tewNHVE36GpZE7ZjTSE4KYoRfbdeL9btV8UmbU=
-cogentcore.org/core v0.3.3-0.20240825182959-fe4840922a21/go.mod h1:dg3uRsPcd8S1ZYvRD2TztCtjopRkrB5V/lbl54xsQd4=
+cogentcore.org/core v0.3.3-0.20240829215614-d202a4746d8b h1:K5NhkLrQaM9wNjD+cwVwALzTdLzvPeweA+DjgHiv19A=
+cogentcore.org/core v0.3.3-0.20240829215614-d202a4746d8b/go.mod h1:dg3uRsPcd8S1ZYvRD2TztCtjopRkrB5V/lbl54xsQd4=
 github.com/Bios-Marcel/wastebasket v0.0.4-0.20240213135800-f26f1ae0a7c4 h1:6lx9xzJAhdjq0LvVfbITeC3IH9Fzvo1aBahyPu2FuG8=
 github.com/Bios-Marcel/wastebasket v0.0.4-0.20240213135800-f26f1ae0a7c4/go.mod h1:FChzXi1izqzdPb6BiNZmcZLGyTYiT61iGx9Rxx9GNeI=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=