diff --git a/json_to_md.py b/json_to_md.py
index 36005c10..78bffa17 100644
--- a/json_to_md.py
+++ b/json_to_md.py
@@ -61,18 +61,17 @@ def normalize_nodeid(nodeid):
     return None
 
 def get_details_block(summary, body, level=0, params_str=None):
-    prefix = "▶️ " * level  # simulate visual depth
-    indent = "  " * level   # optional: indent inside details
-
+    # Pas de HTML imbriqué à l'intérieur de <details> pour éviter les erreurs de rendu
+    prefix = "▶️ " * level
     if params_str:
         summary += f" _(params: {params_str})_"
 
-    return (
-        f"{indent}<details>\n"
-        f"{indent}<summary>{prefix}{summary}</summary>\n\n"
-        f"{indent}{body}\n"
-        f"{indent}</details>\n\n"
-    )
+    block = []
+    block.append(f"<details>")
+    block.append(f"<summary>{prefix}{summary}</summary>\n")
+    block.append(body.strip())  # Enlève les espaces avant/après le contenu
+    block.append(f"</details>\n")
+    return "\n".join(block)
 
 
 def make_test_block(test, status, emoji, level, runtime_params):