diff --git a/lib/codegen/rust/reqwest.dart b/lib/codegen/rust/reqwest.dart
index 9c93f697..645d1fcf 100644
--- a/lib/codegen/rust/reqwest.dart
+++ b/lib/codegen/rust/reqwest.dart
@@ -18,7 +18,7 @@ class RustReqwestCodeGen {
 
   String kTemplateBody = """
 
-    let payload = b"{{body}}";
+    let payload = r#"{{body}}"#;
 
 """;
 
@@ -65,7 +65,7 @@ class RustReqwestCodeGen {
     }
 ''';
 
-  String kStringRequestBody = """\n        .body(payload.to_vec())""";
+  String kStringRequestBody = """\n        .body(payload)""";
 
   String kStringRequestJson = """\n        .json(&payload)""";
 
@@ -150,14 +150,13 @@ class RustReqwestCodeGen {
         }
 
         var headersList = requestModel.enabledRequestHeaders;
-        if (headersList != null) {
+        if (headersList != null || hasBody) {
           var headers = requestModel.enabledHeadersMap;
+          if (hasBody) {
+            headers[HttpHeaders.contentTypeHeader] =
+                requestModel.requestBodyContentType.header;
+          }
           if (headers.isNotEmpty) {
-            if (hasBody) {
-              headers[HttpHeaders.contentTypeHeader] =
-                  requestModel.requestBodyContentType.header;
-            }
-
             var templateHeaders = jj.Template(kTemplateHeaders);
             result += templateHeaders.render({"headers": headers});
           }
diff --git a/test/codegen/rust_reqwest_codegen_test.dart b/test/codegen/rust_reqwest_codegen_test.dart
index 2030d6ac..8cdb4078 100644
--- a/test/codegen/rust_reqwest_codegen_test.dart
+++ b/test/codegen/rust_reqwest_codegen_test.dart
@@ -312,13 +312,14 @@ void main() {
     let client = reqwest::blocking::Client::new();
     let url = "https://api.foss42.com/case/lower";
 
-    let payload = b"{
+    let payload = r#"{
 "text": "I LOVE Flutter"
-}";
+}"#;
 
     let response = client
         .post(url)
-        .body(payload.to_vec())
+        .header("content-type", "text/plain")
+        .body(payload)
         .send()?;
 
     println!("Status Code: {}", response.status());