diff --git a/README.md b/README.md
index b99f95a..939eb6e 100644
--- a/README.md
+++ b/README.md
@@ -42,16 +42,17 @@ jobs:
           openai_api_key: ${{ secrets.OPENAI_API_KEY }}
 ```
 
-| Input             | Description                                           | Required | Default                    |
-| ----------------- | ----------------------------------------------------- | -------- | -------------------------- |
-| `github_token`    | The GitHub token to use for the Action                | Yes      |                            |
-| `openai_api_key`  | The [OpenAI API key] to use, keep it hidden           | Yes      |                            |
-| `pull_request_id` | The ID of the pull request to use                     | No       | Extracted from metadata    |
-| `openai_model`    | The [OpenAI model] to use                             | No       | `gpt-3.5-turbo`            |
-| `max_tokens`      | The maximum number of **prompt tokens** to use        | No       | `1000`                     |
-| `temperature`     | Higher values will make the model more creative (0-2) | No       | `0.6`                      |
-| `sample_prompt`   | The prompt to use for giving context to the model     | No       | See `SAMPLE_PROMPT`        |
-| `sample_response` | A sample response for giving context to the model     | No       | See `GOOD_SAMPLE_RESPONSE` |
+| Input               | Description                                                    | Required | Default                    |
+| ------------------- | -------------------------------------------------------------- | -------- | -------------------------- |
+| `github_token`      | The GitHub token to use for the Action                         | Yes      |                            |
+| `openai_api_key`    | The [OpenAI API key] to use, keep it hidden                    | Yes      |                            |
+| `pull_request_id`   | The ID of the pull request to use                              | No       | Extracted from metadata    |
+| `openai_model`      | The [OpenAI model] to use                                      | No       | `gpt-3.5-turbo`            |
+| `max_tokens`        | The maximum number of **prompt tokens** to use                 | No       | `1000`                     |
+| `temperature`       | Higher values will make the model more creative (0-2)          | No       | `0.6`                      |
+| `sample_prompt`     | The prompt to use for giving context to the model              | No       | See `SAMPLE_PROMPT`        |
+| `sample_response`   | A sample response for giving context to the model              | No       | See `GOOD_SAMPLE_RESPONSE` |
+| `completion_prompt` | The prompt to use for the model to generate the PR description | No       | See `COMPLETION_PROMPT`    |
 
 
 [OpenAI API key]: https://help.openai.com/en/articles/4936850-where-do-i-find-my-secret-api-key
diff --git a/action.yml b/action.yml
index e1e9a97..a1e54d8 100644
--- a/action.yml
+++ b/action.yml
@@ -35,6 +35,10 @@ inputs:
     description: 'A sample of an ideal response based on the sample prompt'
     required: false
     default: ''
+  completion_prompt:
+    description: 'Prompt to use as the final prompt to the model, refer to COMPLETION_PROMPT in the Python file.'
+    required: false
+    default: ''
 
 runs:
   using: 'docker'
diff --git a/autofill_description.py b/autofill_description.py
index cee7a2c..265ac50 100755
--- a/autofill_description.py
+++ b/autofill_description.py
@@ -46,6 +46,11 @@
 Overall, this change will improve the quality of the project by helping us detect and prevent memory errors.
 """
 
+COMPLETION_PROMPT = f"""
+Write a pull request description focusing on the motivation behind the change and why it improves the project.
+Go straight to the point. The following changes took place: \n
+"""
+
 
 def main():
     parser = argparse.ArgumentParser(
@@ -98,6 +103,9 @@ def main():
     model_sample_response = os.environ.get(
         "INPUT_MODEL_SAMPLE_RESPONSE", GOOD_SAMPLE_RESPONSE
     )
+    completion_prompt = os.environ.get(
+        "INPUT_COMPLETION_PROMPT", COMPLETION_PROMPT
+    )
     authorization_header = {
         "Accept": "application/vnd.github.v3+json",
         "Authorization": "token %s" % github_token,
@@ -153,12 +161,6 @@ def main():
 
         pull_request_files.extend(pull_files_chunk)
 
-        completion_prompt = f"""
-Write a pull request description focusing on the motivation behind the change and why it improves the project.
-Go straight to the point.
-
-The title of the pull request is "{pull_request_title}" and the following changes took place: \n
-"""
     for pull_request_file in pull_request_files:
         # Not all PR file metadata entries may contain a patch section
         # For example, entries related to removed binary files may not contain it
@@ -185,6 +187,10 @@ def main():
             },
             {"role": "user", "content": model_sample_prompt},
             {"role": "assistant", "content": model_sample_response},
+            {
+                "role": "user",
+                "content": "Title of the pull request: " + pull_request_title,
+            },
             {"role": "user", "content": completion_prompt},
         ],
         temperature=model_temperature,