diff --git a/.github/workflows/code-review.yaml b/.github/workflows/code-review.yaml
index d128e55..c72103a 100644
--- a/.github/workflows/code-review.yaml
+++ b/.github/workflows/code-review.yaml
@@ -22,4 +22,6 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           openai_key: ${{ secrets.OPENAI_KEY }}
           exclude: "**/*.json, **/*.md, **/*.g.dart"
-          append_prompt: "Give a maximum of 3 suggestions"
\ No newline at end of file
+          append_prompt: |
+            Give a maximum of 3 suggestions.
+            All suggestions must be in portuguese (pt-br), and must follow Markdown syntax.
\ No newline at end of file
diff --git a/code-review/action.js b/code-review/action.js
index 2c0c5c3..53c0c31 100644
--- a/code-review/action.js
+++ b/code-review/action.js
@@ -78,12 +78,13 @@ function createMessages(file, chunk, prDetails) {
     const instructionJsonFormat = `- Provide the response in following JSON format:  [{"lineNumber":  <line_number>, "reviewComment": "<review comment>"}]`;
 
     var contentSystemMessage = `You are a senior software engineer and your task is to review pull requests for possible bugs or bad development practices. Follow the instructions below:
-- You should NEVER give positive comments or compliments.
-- You should NEVER suggest removing empty line.
-- You should NEVER suggest to remove trailing or leading whitespace.
-- You should NEVER suggest adding comment to describe the purpose of methods or functions.
-- You ONLY will provide comments and suggestions if there is something to improve, otherwise return an empty array.
-- You must write the comment in GitHub Markdown format.
+- You should never give positive comments or compliments.
+- You should never suggest removing empty line.
+- You should not suggest adding a new line at the end of the file.
+- You should never suggest to remove trailing or leading whitespace.
+- You should never suggest adding comment to code.
+- You will provide suggestions only if there is possible issues or bugs in the code, otherwise return an empty array.
+- You must write the suggestions in GitHub Markdown format.
 - Do use the given pull request title and description only for the overall context and only comment the code.`;
 
     if (overridePrompt) {