diff --git a/Dockerfile b/Dockerfile
index c33ba87..c2b2fd5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,7 +31,7 @@ RUN \
   tar xzf \
     /tmp/sonarr.tar.gz -C \
     /app/sonarr/bin --strip-components=1 && \
-  echo -e "UpdateMethod=docker\nBranch=${sonarr_BRANCH}\nPackageVersion=${VERSION}\nPackageAuthor=[linuxserver.io](https://linuxserver.io)" > /app/sonarr/package_info && \
+  echo -e "UpdateMethod=docker\nBranch=${SONARR_BRANCH}\nPackageVersion=${VERSION}\nPackageAuthor=[linuxserver.io](https://linuxserver.io)" > /app/sonarr/package_info && \
   echo "**** cleanup ****" && \
   rm -rf \
     /app/sonarr/bin/Sonarr.Update \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 4ef0e5c..60d6303 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -31,7 +31,7 @@ RUN \
   tar xzf \
     /tmp/sonarr.tar.gz -C \
     /app/sonarr/bin --strip-components=1 && \
-  echo -e "UpdateMethod=docker\nBranch=${sonarr_BRANCH}\nPackageVersion=${VERSION}\nPackageAuthor=[linuxserver.io](https://linuxserver.io)" > /app/sonarr/package_info && \
+  echo -e "UpdateMethod=docker\nBranch=${SONARR_BRANCH}\nPackageVersion=${VERSION}\nPackageAuthor=[linuxserver.io](https://linuxserver.io)" > /app/sonarr/package_info && \
   echo "**** cleanup ****" && \
   rm -rf \
     /app/sonarr/bin/Sonarr.Update \