diff --git a/docs/src/guides/jobs.md b/docs/src/guides/jobs.md
index 56fdd147a..4a5c9df9f 100644
--- a/docs/src/guides/jobs.md
+++ b/docs/src/guides/jobs.md
@@ -255,7 +255,7 @@ job = JuliaHub.submit_job(
     using Oxygen, HTTP
     # Environment variable name `PORT` was used in older JuliaHub environments
     # and has been replaced with `JULIAHUB_APP_PORT` in newer environments 
-    PORT = parse(Int, get(ENV, "JULIAHUB_APP_PORT", ENV["PORT"]))
+    PORT = parse(Int, get(ENV, "JULIAHUB_APP_PORT", get(ENV, "PORT", "")))
     @get "/" function(req::HTTP.Request)
         return "success"
     end
diff --git a/test/jobenvs/job-exposed-port/server.jl b/test/jobenvs/job-exposed-port/server.jl
index 6c0186594..7ac9aad33 100644
--- a/test/jobenvs/job-exposed-port/server.jl
+++ b/test/jobenvs/job-exposed-port/server.jl
@@ -2,7 +2,7 @@ using Oxygen, HTTP
 
 # Environment variable name `PORT` was used in older JuliaHub environments
 # and has been replaced with `JULIAHUB_APP_PORT` in newer environments 
-const PORT = parse(Int, get(ENV, "JULIAHUB_APP_PORT", ENV["PORT"]))
+const PORT = parse(Int, get(ENV, "JULIAHUB_APP_PORT", get(ENV, "PORT", "")))
 const NREQUESTS = Ref{Int}(0)
 
 function results_json()