diff --git a/_demo/readdir/main.go b/_demo/readdir/main.go
new file mode 100644
index 00000000..ed394e64
--- /dev/null
+++ b/_demo/readdir/main.go
@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func main() {
+	entries, err := os.ReadDir("../")
+	if err != nil {
+		panic(err)
+	}
+	if len(entries) == 0 {
+		panic("No files found")
+	}
+	for _, e := range entries {
+		fmt.Printf("%s isDir[%t]\n", e.Name(), e.IsDir())
+	}
+}
diff --git a/runtime/internal/lib/os/dir.go b/runtime/internal/lib/os/dir.go
index 4eb102ed..37840e62 100644
--- a/runtime/internal/lib/os/dir.go
+++ b/runtime/internal/lib/os/dir.go
@@ -120,6 +120,14 @@ func direntNamePtr(name any) *byte {
 		return name
 	case []byte:
 		return &name[0]
+	case [1024]int8:
+		return (*byte)(unsafe.Pointer(&name[0]))
+	case [512]int8:
+		return (*byte)(unsafe.Pointer(&name[0]))
+	case [256]int8:
+		return (*byte)(unsafe.Pointer(&name[0]))
+	case [256]uint8:
+		return (*byte)(unsafe.Pointer(&name[0]))
 	default:
 		panic("invalid type")
 	}