diff --git a/README.md b/README.md
index 319dca1..6db4061 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ To disable HTTP2 set the environment variable `CPAD_HTTP2_DISABLE` to `true`.
 | `CPAD_TLS_KEY` | Path to TLS private key file | No | None |
 | `CPAD_TLS_DHPARAM` | Path to Diffie-Hellman parameters file | No | `/etc/nginx/dhparam.pem` |
 | `CPAD_HTTP2_DISABLE` | Disable HTTP2 | No | `false` |
-| `CPAD_OPENGRAPH` | Enable generation of Open Graph metadata | No | `true` |
+| CPAD_OPENGRAPH | Enable generation of Open Graph metadata | No | true |
 
 #### Usage