diff --git a/readme.md b/readme.md
index f6c155d..1cb36e6 100644
--- a/readme.md
+++ b/readme.md
@@ -318,15 +318,15 @@ modelgrid cluster activate NODE # Mark a node active again
 
 High-performance inference with PagedAttention and continuous batching.
 
-```bash
+```jsonc
 {
   "id": "vllm-1",
   "type": "vllm",
   "name": "vLLM Server",
-  "gpuIds": ["nvidia-0", "nvidia-1"],  # Tensor parallelism
+  "gpuIds": ["nvidia-0", "nvidia-1"], // Tensor parallelism
   "port": 8000,
   "env": {
-    "HF_TOKEN": "your-huggingface-token"  # For gated models
+    "HF_TOKEN": "your-huggingface-token" // For gated models
   }
 }
 ```