diff --git a/matrix_keycloak_bot.py b/matrix_keycloak_bot.py
index 00886fc..6fa8558 100644
--- a/matrix_keycloak_bot.py
+++ b/matrix_keycloak_bot.py
@@ -100,7 +100,8 @@ def get_requestable_groups(username: str) -> tuple[bool, str]:
                 group_lines.append(f"* `{name}`")
 
         group_list = "\n".join(group_lines)
-        return True, f"**Available Groups:**\n{group_list}"
+        # Added extra \n before {group_list} to satisfy Markdown list block rules
+        return True, f"**Available Groups:**\n\n{group_list}"
 
     except KeycloakError as e:
         return False, f"Keycloak API error: {str(e)}"
@@ -131,7 +132,8 @@ async def send_markdown_message(
     msgtype: str = "m.text",
     relates_to: dict = None,
 ):
-    html_body = markdown.markdown(md_text, extensions=["extra", "sane_lists"])
+    # Added "nl2br" extension to preserve single line breaks in chat messages
+    html_body = markdown.markdown(md_text, extensions=["extra", "sane_lists", "nl2br"])
 
     content = {
         "msgtype": msgtype,