diff --git a/.github/renovate.json b/.github/renovate.json
index 8be5b1f..4c497f4 100644
--- a/.github/renovate.json
+++ b/.github/renovate.json
@@ -15,7 +15,7 @@
                 "^Dockerfile$"
             ],
             "matchStrings": [
-                "ARG 3PROXY_VERSION=(?<currentValue>.*?)\n"
+                "ARG Z3PROXY_VERSION=(?<currentValue>.*?)\n"
             ],
             "depNameTemplate": "github.com/z3APA3A/3proxy",
             "datasourceTemplate": "git-tags"
diff --git a/Dockerfile b/Dockerfile
index a498d48..533692b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,12 @@
 # Image page: <https://hub.docker.com/_/gcc>
 FROM gcc:12.1.0 as builder
 
-# e.g.: `docker build --build-arg "3PROXY_VERSION=0.9.4" .`
-ARG 3PROXY_VERSION=0.9.3
+# e.g.: `docker build --build-arg "Z3PROXY_VERSION=0.9.4" .`
+ARG Z3PROXY_VERSION=0.9.3
 
 # Fetch 3proxy sources
 RUN set -x \
-    && git clone --branch "${3PROXY_VERSION}" https://github.com/z3APA3A/3proxy.git /tmp/3proxy
+    && git clone --branch "${Z3PROXY_VERSION}" https://github.com/z3APA3A/3proxy.git /tmp/3proxy
 
 WORKDIR /tmp/3proxy