diff --git a/README.md b/README.md
index c06cba094..8ea04bb16 100644
--- a/README.md
+++ b/README.md
@@ -71,6 +71,7 @@ The `datamodel-codegen` command:
 ```bash
 usage: datamodel-codegen [-h] [--input INPUT] [--url URL]
                          [--http-headers HTTP_HEADER [HTTP_HEADER ...]]
+                         [--http-ignore-tls]
                          [--input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}]
                          [--openapi-scopes {schemas,paths} [{schemas,paths} ...]]
                          [--output OUTPUT] [--base-class BASE_CLASS]
@@ -106,6 +107,8 @@ optional arguments:
   --http-headers HTTP_HEADER [HTTP_HEADER ...]
                         Set headers in HTTP requests to the remote host.
                         (example: "Authorization: Basic dXNlcjpwYXNz")
+  --http-ignore-tls     Disable verification of the remote host's TLS
+                        certificate
   --input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}
                         Input file type (default: auto)
   --openapi-scopes {schemas,paths} [{schemas,paths} ...]
diff --git a/docs/index.md b/docs/index.md
index 0275a795e..1ae636516 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -37,6 +37,7 @@ The `datamodel-codegen` command:
 ```bash
 usage: datamodel-codegen [-h] [--input INPUT] [--url URL]
                          [--http-headers HTTP_HEADER [HTTP_HEADER ...]]
+                         [--http-ignore-tls]
                          [--input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}]
                          [--openapi-scopes {schemas,paths} [{schemas,paths} ...]]
                          [--output OUTPUT] [--base-class BASE_CLASS]
@@ -72,6 +73,8 @@ optional arguments:
   --http-headers HTTP_HEADER [HTTP_HEADER ...]
                         Set headers in HTTP requests to the remote host.
                         (example: "Authorization: Basic dXNlcjpwYXNz")
+  --http-ignore-tls     Disable verification of the remote host's TLS
+                        certificate
   --input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}
                         Input file type (default: auto)
   --openapi-scopes {schemas,paths} [{schemas,paths} ...]