diff --git a/README.md b/README.md
index 2bff88b55d..508b86bb1e 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ python setup.py install
 - don't forget to the configuration for mmdc in config.yml
 
     ```yml
-    PUPPETEER_CONFIG: "./puppeteer-config.json"
+    PUPPETEER_CONFIG: "./config/puppeteer-config.json"
     MMDC: "./node_modules/.bin/mmdc"
     ```
 
diff --git a/config/config.yaml b/config/config.yaml
index 4abec8f252..1ca86ee427 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -57,7 +57,6 @@ SD_T2I_API: "/sdapi/v1/txt2img"
 #LONG_TERM_MEMORY: false
 
 #### for Mermaid CLI
-# adds support for installing mmdc (Mermaid CLI) locally on the user's machine.
-# PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true npm install @mermaid-js/mermaid-cli
-#PUPPETEER_CONFIG: "./puppeteer-config.json"
+## If you installed mmdc (Mermaid CLI) only for metagpt then enable the following configuration.
+#PUPPETEER_CONFIG: "./config/puppeteer-config.json"
 #MMDC: "./node_modules/.bin/mmdc"
\ No newline at end of file
diff --git a/puppeteer-config.json b/config/puppeteer-config.json
similarity index 100%
rename from puppeteer-config.json
rename to config/puppeteer-config.json
diff --git a/metagpt/utils/mermaid.py b/metagpt/utils/mermaid.py
index d1bbb85f7b..3850faae3a 100644
--- a/metagpt/utils/mermaid.py
+++ b/metagpt/utils/mermaid.py
@@ -16,8 +16,6 @@
 IS_DOCKER = os.environ.get('AM_I_IN_A_DOCKER_CONTAINER', 'false').lower()
 
 
-
-
 def mermaid_to_file(mermaid_code, output_file_without_suffix, width=2048, height=2048) -> int:
     """suffix: png/svg/pdf
 
@@ -41,15 +39,15 @@ def mermaid_to_file(mermaid_code, output_file_without_suffix, width=2048, height
         # Call the `mmdc` command to convert the Mermaid code to a PNG
         logger.info(f"Generating {output_file}..")
         if IS_DOCKER == 'true':
-            subprocess.run(['mmdc', '-p', '/app/metagpt/puppeteer-config.json', '-i',
+            subprocess.run(['mmdc', '-p', '/app/metagpt/config/puppeteer-config.json', '-i',
                            str(tmp), '-o', output_file, '-w', str(width), '-H', str(height)])
         else:
             if CONFIG.puppeteer_config:
-                subprocess.run([CONFIG.mmdc,'-p',CONFIG.puppeteer_config, '-i', str(tmp), '-o',
-                           output_file, '-w', str(width), '-H', str(height)])
+                subprocess.run([CONFIG.mmdc, '-p', CONFIG.puppeteer_config, '-i', str(tmp), '-o',
+                                output_file, '-w', str(width), '-H', str(height)])
             else:
-                subprocess.run( [CONFIG.mmdc, '-i', str(tmp), '-o',
-                           output_file, '-w', str(width), '-H', str(height)])
+                subprocess.run([CONFIG.mmdc, '-i', str(tmp), '-o',
+                                output_file, '-w', str(width), '-H', str(height)])
     return 0