diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a6ca869..53bca146 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,6 +45,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 - Ensure autobuilt overlays include contextual overlay contents. #1296
 - Fix the failure when updating overlay files existing on different partitions. #1312
+- Escape asset tag for `wwclient` query strings when pulling runtime overlays. #1310
 
 ## v4.5.5, 2024-07-05
 
diff --git a/internal/app/wwclient/root.go b/internal/app/wwclient/root.go
index 110d23be..0355502f 100644
--- a/internal/app/wwclient/root.go
+++ b/internal/app/wwclient/root.go
@@ -6,6 +6,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"net/url"
 	"os"
 	"os/exec"
 	"os/signal"
@@ -132,7 +133,7 @@ func CobraRunE(cmd *cobra.Command, args []string) (err error) {
 		if tag == "Unknown" {
 			dmiOut, err := exec.Command("dmidecode", "-s", "chassis-asset-tag").Output()
 			if err == nil {
-				chassisAssetTag := strings.TrimSpace(string(dmiOut))
+				chassisAssetTag := url.QueryEscape(strings.TrimSpace(string(dmiOut)))
 				if chassisAssetTag != "" {
 					tag = chassisAssetTag
 				}