diff --git a/backend/src/utils/misc.ts b/backend/src/utils/misc.ts
index d838ed3ab..b2f136b20 100644
--- a/backend/src/utils/misc.ts
+++ b/backend/src/utils/misc.ts
@@ -44,7 +44,7 @@ export function base64UrlDecode(data: string): string {
 }
 
 interface AgentLog {
-  ip: string | string[];
+  ip: string;
   agent: string;
   device?: string;
 }
@@ -54,8 +54,8 @@ export function buildAgentLog(req: MonkeyTypes.Request): AgentLog {
 
   const agentLog: AgentLog = {
     ip:
-      req.headers["cf-connecting-ip"] ||
-      req.headers["x-forwarded-for"] ||
+      (req.headers["cf-connecting-ip"] as string) ||
+      (req.headers["x-forwarded-for"] as string) ||
       req.ip ||
       "255.255.255.255",
     agent: `${agent.os.name} ${agent.os.version} ${agent.browser.name} ${agent.browser.version}`,