diff --git a/registry/ausbru87/modules/aws-cli/README.md b/registry/ausbru87/modules/aws-cli/README.md
index 0ded3d20..6d0cbf5a 100644
--- a/registry/ausbru87/modules/aws-cli/README.md
+++ b/registry/ausbru87/modules/aws-cli/README.md
@@ -62,3 +62,17 @@ module "aws-cli" {
   log_path = "/var/log/aws-cli.log"
 }
 ```
+
+### Airgapped Environment
+
+Use a custom download URL for environments without internet access to AWS:
+
+```tf
+module "aws-cli" {
+  count        = data.coder_workspace.me.start_count
+  source       = "registry.coder.com/ausbru87/aws-cli/coder"
+  version      = "1.0.0"
+  agent_id     = coder_agent.example.id
+  download_url = "https://internal-mirror.company.com/awscli-exe-linux-x86_64.zip"
+}
+```
diff --git a/registry/ausbru87/modules/aws-cli/aws-cli.tftest.hcl b/registry/ausbru87/modules/aws-cli/aws-cli.tftest.hcl
index 210fec2b..bd2c66a9 100644
--- a/registry/ausbru87/modules/aws-cli/aws-cli.tftest.hcl
+++ b/registry/ausbru87/modules/aws-cli/aws-cli.tftest.hcl
@@ -23,3 +23,12 @@ run "with_custom_log_path" {
     log_path = "/var/log/aws-cli.log"
   }
 }
+
+run "with_custom_download_url" {
+  command = plan
+
+  variables {
+    agent_id     = "test-agent-id"
+    download_url = "https://internal-mirror.company.com/awscli-exe-linux-x86_64.zip"
+  }
+}
diff --git a/registry/ausbru87/modules/aws-cli/main.tf b/registry/ausbru87/modules/aws-cli/main.tf
index 825b7b8b..b3bea3eb 100644
--- a/registry/ausbru87/modules/aws-cli/main.tf
+++ b/registry/ausbru87/modules/aws-cli/main.tf
@@ -20,6 +20,12 @@ variable "install_version" {
   default     = ""
 }
 
+variable "download_url" {
+  type        = string
+  description = "Custom download URL for AWS CLI. Useful for airgapped environments. If not set, uses the official AWS download URL."
+  default     = ""
+}
+
 variable "log_path" {
   type        = string
   description = "The path to the AWS CLI installation log file."
@@ -33,6 +39,7 @@ resource "coder_script" "aws-cli" {
   script = templatefile("${path.module}/run.sh", {
     LOG_PATH : var.log_path,
     VERSION : var.install_version,
+    DOWNLOAD_URL : var.download_url,
   })
   run_on_start = true
   run_on_stop  = false
diff --git a/registry/ausbru87/modules/aws-cli/run.sh b/registry/ausbru87/modules/aws-cli/run.sh
index b2b25ccd..864871e1 100755
--- a/registry/ausbru87/modules/aws-cli/run.sh
+++ b/registry/ausbru87/modules/aws-cli/run.sh
@@ -2,19 +2,20 @@
 
 LOG_PATH=${LOG_PATH}
 VERSION=${VERSION}
+DOWNLOAD_URL=${DOWNLOAD_URL}
 
-BOLD='\033[0;1m'
-RESET='\033[0m'
+BOLD='\\033[0;1m'
+RESET='\\033[0m'
 
-printf "${BOLD}Installing AWS CLI...\n${RESET}"
+printf "${BOLD}Installing AWS CLI...\\n${RESET}"
 
 # Check if AWS CLI is already installed
 if command -v aws > /dev/null 2>&1; then
   INSTALLED_VERSION=$(aws --version 2>&1 | cut -d' ' -f1 | cut -d'/' -f2)
   if [ -n "$VERSION" ] && [ "$INSTALLED_VERSION" != "$VERSION" ]; then
-    printf "AWS CLI $INSTALLED_VERSION is installed, but version $VERSION was requested.\n"
+    printf "AWS CLI $INSTALLED_VERSION is installed, but version $VERSION was requested.\\n"
   else
-    printf "AWS CLI is already installed ($INSTALLED_VERSION). Skipping installation.\n"
+    printf "AWS CLI is already installed ($INSTALLED_VERSION). Skipping installation.\\n"
     exit 0
   fi
 fi
@@ -27,16 +28,19 @@ case "$ARCH" in
   x86_64) ARCH="x86_64" ;;
   aarch64 | arm64) ARCH="aarch64" ;;
   *)
-    printf "Unsupported architecture: $ARCH\n" > "${LOG_PATH}" 2>&1
+    printf "Unsupported architecture: $ARCH\\n" > "${LOG_PATH}" 2>&1
     exit 1
     ;;
 esac
 
 # Install AWS CLI
 if [ "$OS" = "linux" ]; then
-  DOWNLOAD_URL="https://awscli.amazonaws.com/awscli-exe-linux-${ARCH}.zip"
+  # Use custom download URL if provided, otherwise use default AWS URL
+  if [ -z "$DOWNLOAD_URL" ]; then
+    DOWNLOAD_URL="https://awscli.amazonaws.com/awscli-exe-linux-${ARCH}.zip"
+  fi
 
-  printf "Downloading AWS CLI from $DOWNLOAD_URL...\n"
+  printf "Downloading AWS CLI from $DOWNLOAD_URL...\\n"
   curl -fsSL "$DOWNLOAD_URL" -o /tmp/awscliv2.zip >> "${LOG_PATH}" 2>&1
 
   unzip -q /tmp/awscliv2.zip -d /tmp >> "${LOG_PATH}" 2>&1
@@ -45,9 +49,12 @@ if [ "$OS" = "linux" ]; then
   rm -rf /tmp/awscliv2.zip /tmp/aws
 
 elif [ "$OS" = "darwin" ]; then
-  DOWNLOAD_URL="https://awscli.amazonaws.com/AWSCLIV2.pkg"
+  # Use custom download URL if provided, otherwise use default AWS URL
+  if [ -z "$DOWNLOAD_URL" ]; then
+    DOWNLOAD_URL="https://awscli.amazonaws.com/AWSCLIV2.pkg"
+  fi
 
-  printf "Downloading AWS CLI from $DOWNLOAD_URL...\n"
+  printf "Downloading AWS CLI from $DOWNLOAD_URL...\\n"
   curl -fsSL "$DOWNLOAD_URL" -o /tmp/AWSCLIV2.pkg >> "${LOG_PATH}" 2>&1
 
   sudo installer -pkg /tmp/AWSCLIV2.pkg -target / >> "${LOG_PATH}" 2>&1
@@ -55,15 +62,15 @@ elif [ "$OS" = "darwin" ]; then
   rm -f /tmp/AWSCLIV2.pkg
 
 else
-  printf "Unsupported OS: $OS\n" > "${LOG_PATH}" 2>&1
+  printf "Unsupported OS: $OS\\n" > "${LOG_PATH}" 2>&1
   exit 1
 fi
 
 if command -v aws > /dev/null 2>&1; then
-  printf "🥳 AWS CLI installed successfully!\n"
+  printf "🥳 AWS CLI installed successfully!\\n"
   aws --version
 else
-  printf "❌ AWS CLI installation failed. Check logs at ${LOG_PATH}\n"
+  printf "❌ AWS CLI installation failed. Check logs at ${LOG_PATH}\\n"
   exit 1
 fi
 
@@ -75,7 +82,7 @@ if command -v aws_completer > /dev/null 2>&1; then
   if [ -f ~/.bashrc ]; then
     if ! grep -q "aws_completer.*aws" ~/.bashrc; then
       echo "complete -C '$AWS_COMPLETER_PATH' aws" >> ~/.bashrc
-      printf "✓ Configured AWS CLI autocomplete for bash\n"
+      printf "✓ Configured AWS CLI autocomplete for bash\\n"
     fi
   fi
 
@@ -89,7 +96,7 @@ autoload bashcompinit && bashcompinit
 autoload -Uz compinit && compinit
 complete -C '$AWS_COMPLETER_PATH' aws
 EOF
-      printf "✓ Configured AWS CLI autocomplete for zsh\n"
+      printf "✓ Configured AWS CLI autocomplete for zsh\\n"
     fi
   fi
 
@@ -101,7 +108,7 @@ EOF
       cat > "$FISH_COMPLETION" << 'EOF'
 complete --command aws --no-files --arguments '(begin; set --local --export COMP_SHELL fish; set --local --export COMP_LINE (commandline); aws_completer | sed '"'"'s/ $//'"'"'; end)'
 EOF
-      printf "✓ Configured AWS CLI autocomplete for fish\n"
+      printf "✓ Configured AWS CLI autocomplete for fish\\n"
     fi
   fi
 fi