diff --git a/aws/aws_sso_config_duplicate_sections.sh b/aws/aws_sso_config_duplicate_sections.sh
index d38b05b3aef..835a92b726b 100755
--- a/aws/aws_sso_config_duplicate_sections.sh
+++ b/aws/aws_sso_config_duplicate_sections.sh
@@ -52,7 +52,7 @@ duplicate_account_ids="$(
     sed 's/.*=[[:space:]]*//' |
     sort |
     uniq -d |
-    sed '^/[[:space:]]*$/d'
+    sed '/^[[:space:]]*$/d'
 )"
 
 section=""