diff --git a/Dockerfile b/Dockerfile
index 5999ee0634..6d68b526b8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,8 @@ LABEL maintainer="thelamer"
 
 # environment settings
 ENV XDG_DATA_HOME="/config" \
-XDG_CONFIG_HOME="/config"
+  XDG_CONFIG_HOME="/config" \
+  TMPDIR=/run/jackett-temp
 
 RUN \
   echo "**** install packages ****" && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index c5208e8e0b..190e3908d9 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -11,7 +11,8 @@ LABEL maintainer="thelamer"
 
 # environment settings
 ENV XDG_DATA_HOME="/config" \
-XDG_CONFIG_HOME="/config"
+  XDG_CONFIG_HOME="/config" \
+  TMPDIR=/run/jackett-temp
 
 RUN \
   echo "**** install packages ****" && \
diff --git a/readme-vars.yml b/readme-vars.yml
index c1abfe727d..68a403ae52 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -27,6 +27,11 @@ opt_param_usage_include_env: true
 opt_param_env_vars:
   - {env_var: "AUTO_UPDATE", env_value: "true", desc: "Allow Jackett to update inside of the container (currently recommended by Jackett and enabled by default)"}
   - {env_var: "RUN_OPTS", env_value: "", desc: "Optionally specify additional arguments to be passed."}
+
+readonly_supported: true
+readonly_message: |
+  `AUTO_UPDATE` will not be available.
+
 # application setup block
 app_setup_block_enabled: true
 app_setup_block: |
diff --git a/root/etc/s6-overlay/s6-rc.d/init-jackett-config/run b/root/etc/s6-overlay/s6-rc.d/init-jackett-config/run
index 51607f66d0..0084a6a4e6 100755
--- a/root/etc/s6-overlay/s6-rc.d/init-jackett-config/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-jackett-config/run
@@ -1,11 +1,14 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
-if [[ -z ${AUTO_UPDATE+x} ]] || [[ "${AUTO_UPDATE}" == "true" ]]; then
+if [[ "${AUTO_UPDATE}" == "true" ]]; then
     lsiown -R abc:abc \
         /app/Jackett
 fi
 
+mkdir -p /run/jackett-temp
+
 # permissions
 lsiown -R abc:abc \
-    /config
+    /config \
+    /run/jackett-temp
diff --git a/root/etc/s6-overlay/s6-rc.d/svc-jackett/run b/root/etc/s6-overlay/s6-rc.d/svc-jackett/run
index 5934be224f..f7fbc1e2b7 100755
--- a/root/etc/s6-overlay/s6-rc.d/svc-jackett/run
+++ b/root/etc/s6-overlay/s6-rc.d/svc-jackett/run
@@ -1,7 +1,7 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
-if [[ -z ${AUTO_UPDATE+x} ]] || [[ "${AUTO_UPDATE}" == "true" ]]; then
+if [[ "${AUTO_UPDATE}" == "true" ]]; then
     COMMAND="/app/Jackett/jackett_launcher.sh"
 else
     COMMAND="/app/Jackett/jackett --NoUpdates"