diff --git a/build-darkice.jenkins b/build-darkice.jenkins
index 2ad630c..2bfae20 100644
--- a/build-darkice.jenkins
+++ b/build-darkice.jenkins
@@ -8,6 +8,8 @@ def dockerFile
 
 def label = "kubernetes-${UUID.randomUUID().toString()}"
 def templateName = "pipeline-worker"
+def darkiceVersion = "1.5"
+
 pipeline {
     agent {
         kubernetes {
@@ -25,13 +27,12 @@ pipeline {
                 script {
                     workspace = pwd()
                     dockerFile = """FROM ${repository}/dockerhub/library/debian:latest as builder
-ARG DARKICE_VERSION="1.5"
 
 RUN apt-get update \\
     && apt-get --no-install-recommends --yes install ca-certificates curl build-essential tar pkg-config alsa-utils lame libmp3lame-dev libpulse-dev libjack-jackd2-dev libaudio-dev libasound2-dev libshout3-dev libmp3lame-dev \\
     && mkdir /tmp/build \\
-    && curl -L https://github.com/rafael2k/darkice/releases/download/v\${DARKICE_VERSION}/darkice-\${DARKICE_VERSION}.tar.gz | tar -z -x -f - -C /tmp/build \\
-    && cd /tmp/build/darkice-\${DARKICE_VERSION}/ \\
+    && curl -L https://github.com/rafael2k/darkice/releases/download/v${darkiceVersion}/darkice-${darkiceVersion}.tar.gz | tar -z -x -f - -C /tmp/build \\
+    && cd /tmp/build/darkice-${darkiceVersion}/ \\
     && ./configure CXXFLAGS="-std=c++11" --with-pulseaudio --with-lame --with-alsa --with-jack \\
     && make
 
@@ -40,7 +41,7 @@ FROM ${repository}/dockerhub/library/debian:latest
 LABEL org.opencontainers.image.authors="The_Spider <spider@smoothnet.org>"
 LABEL org.opencontainers.image.title="darkice"
 
-COPY --from=builder /tmp/build/darkice-\${DARKICE_VERSION}/src/darkice /usr/bin/local/
+COPY --from=builder /tmp/build/darkice-${darkiceVersion}/src/darkice /usr/bin/local/
 
 ENTRYPOINT [ "/bin/bash", "-c", "/usr/local/bin/darkice" ]
 """