diff --git a/internal/p10k.zsh b/internal/p10k.zsh
index f4c032d7..85c7f93d 100644
--- a/internal/p10k.zsh
+++ b/internal/p10k.zsh
@@ -1168,8 +1168,8 @@ prompt_aws() {
     fi
   done
 
-  if [[ -n ${AWS_REGION:-AWS_DEFAULT_REGION} ]]; then
-    typeset -g P9K_AWS_REGION=${AWS_REGION:-AWS_DEFAULT_REGION}
+  if [[ -n ${AWS_REGION:-$AWS_DEFAULT_REGION} ]]; then
+    typeset -g P9K_AWS_REGION=${AWS_REGION:-$AWS_DEFAULT_REGION}
   else
     local cfg=${AWS_CONFIG_FILE:-~/.aws/config}
     if ! _p9k_cache_stat_get $0 $cfg; then