diff --git a/registry/anomaly/modules/tmux/main.tf b/registry/anomaly/modules/tmux/main.tf
index 36f8471f..ef58f391 100644
--- a/registry/anomaly/modules/tmux/main.tf
+++ b/registry/anomaly/modules/tmux/main.tf
@@ -55,7 +55,7 @@ resource "coder_script" "tmux" {
   display_name = "tmux"
   icon         = "/icon/terminal.svg"
   script = templatefile("${path.module}/scripts/run.sh", {
-    TMUX_CONFIG   = var.tmux_config
+    TMUX_CONFIG   = base64encode(var.tmux_config)
     SAVE_INTERVAL = var.save_interval
   })
   run_on_start = true
diff --git a/registry/anomaly/modules/tmux/scripts/run.sh b/registry/anomaly/modules/tmux/scripts/run.sh
index 440cc373..a15a14d1 100755
--- a/registry/anomaly/modules/tmux/scripts/run.sh
+++ b/registry/anomaly/modules/tmux/scripts/run.sh
@@ -4,9 +4,7 @@ BOLD='\033[0;1m'
 
 # Convert templated variables to shell variables
 SAVE_INTERVAL="${SAVE_INTERVAL}"
-read -r -d '' TMUX_CONFIG << 'TMUX_EOF' || true
-${TMUX_CONFIG}
-TMUX_EOF
+TMUX_CONFIG=$(echo -n "${TMUX_CONFIG:-}" | base64 -d)
 
 # Function to install tmux
 install_tmux() {