diff --git a/aws/rust-runtime/Cargo.lock b/aws/rust-runtime/Cargo.lock
index 1508998aa0..4d9db35604 100644
--- a/aws/rust-runtime/Cargo.lock
+++ b/aws/rust-runtime/Cargo.lock
@@ -138,7 +138,7 @@ dependencies = [
 
 [[package]]
 name = "aws-runtime"
-version = "1.5.2"
+version = "1.5.3"
 dependencies = [
  "arbitrary",
  "aws-credential-types",
diff --git a/aws/rust-runtime/aws-runtime/Cargo.toml b/aws/rust-runtime/aws-runtime/Cargo.toml
index f9ac90dcf8..a30478ac5c 100644
--- a/aws/rust-runtime/aws-runtime/Cargo.toml
+++ b/aws/rust-runtime/aws-runtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aws-runtime"
-version = "1.5.2"
+version = "1.5.3"
 authors = ["AWS Rust SDK Team <aws-sdk-rust@amazon.com>"]
 description = "Runtime support code for the AWS SDK. This crate isn't intended to be used directly."
 edition = "2021"
diff --git a/aws/rust-runtime/aws-runtime/src/env_config/parse.rs b/aws/rust-runtime/aws-runtime/src/env_config/parse.rs
index 7c292ca63d..eafa41f3a0 100644
--- a/aws/rust-runtime/aws-runtime/src/env_config/parse.rs
+++ b/aws/rust-runtime/aws-runtime/src/env_config/parse.rs
@@ -204,7 +204,7 @@ impl<'a> Parser<'a> {
         let line = prepare_line(line, false);
         let profile_name = line
             .strip_prefix('[')
-            .ok_or_else(|| self.make_error("Profile definition must start with ]"))?
+            .ok_or_else(|| self.make_error("Profile definition must start with '['"))?
             .strip_suffix(']')
             .ok_or_else(|| self.make_error("Profile definition must end with ']'"))?;
         if !self.data.contains_key(profile_name) {