diff --git a/codegenerator/openapi/glance.py b/codegenerator/openapi/glance.py
index 9a6891b..a33ea7a 100644
--- a/codegenerator/openapi/glance.py
+++ b/codegenerator/openapi/glance.py
@@ -207,27 +207,27 @@ IMAGE_PARAMETERS = {
 }
 
 IMAGE_HEADERS = {
- "Content-Type": {
+ "content-type": {
 "description": LiteralScalarString(
 "The media type descriptor of the body, namely application/octet-stream"
 ),
 "schema": {"type": "string"},
 },
- "Content-Length": {
+ "content-length": {
 "description": LiteralScalarString(
 "The length of the body in octets (8-bit bytes)"
 ),
 "schema": {"type": "string"},
 },
- "Content-Md5": {
+ "content-md5": {
 "description": "The MD5 checksum of the body",
 "schema": {"type": "string"},
 },
- "Content-Range": {
+ "content-range": {
 "description": "The content range of image data",
 "schema": {"type": "string"},
 },
- "OpenStack-image-store-ids": {
+ "openstack-image-store-ids": {
 "description": "list of available stores",
 "schema": {"type": "array", "items": {"type": "string"}},
 },
@@ -374,7 +374,7 @@ class GlanceGenerator(OpenStackServerSourceBase):
 if ref not in [x.ref for x in operation_spec.parameters]:
 operation_spec.parameters.append(ParameterSchema(ref=ref))
 elif operationId == "images:post":
- key = "OpenStack-image-store-ids"
+ key = "openstack-image-store-ids"
 ref = f"#/components/headers/{key}"
 operation_spec.responses["201"].setdefault("headers", {})
 operation_spec.responses["201"]["headers"].update(
@@ -394,12 +394,12 @@ class GlanceGenerator(OpenStackServerSourceBase):
 operation_spec.parameters.append(ParameterSchema(ref=ref))
 for code in ["200", "206"]:
 operation_spec.responses[code].setdefault("headers", {})
- for hdr in ["Content-Type", "Content-Md5", "Content-Length"]:
+ for hdr in ["content-type", "content-md5", "content-length"]:
 operation_spec.responses[code]["headers"].setdefault(
 hdr, {"$ref": f"#/components/headers/{hdr}"}
 )
 operation_spec.responses["206"]["headers"].setdefault(
- "Content-Range", {"$ref": "#/components/headers/Content-Range"}
+ "content-range", {"$ref": "#/components/headers/content-range"}
 )
 
 def _get_schema_ref(
diff --git a/codegenerator/templates/rust_cli/impl.rs.j2 b/codegenerator/templates/rust_cli/impl.rs.j2
index db36b66..859e702 100644
--- a/codegenerator/templates/rust_cli/impl.rs.j2
+++ b/codegenerator/templates/rust_cli/impl.rs.j2
@@ -131,7 +131,7 @@ impl {{ target_class_name }}Command {
 let mut find_builder = find::{{ sdk_struct_name }}::builder();
 {{ macros.set_cli_path_parameters(type_manager, "find_builder", find_mode=True) }}
 {%- if microversion %}
- find_builder.header(http::header::HeaderName::from_static("OpenStack-API-Version"), http::header::HeaderValue::from_static("{{ "volume" if service_type == "block-storage" else service_type }} {{ microversion }}"));
+ find_builder.header(http::header::HeaderName::from_static("openstack-api-version"), http::header::HeaderValue::from_static("{{ "volume" if service_type == "block-storage" else service_type }} {{ microversion }}"));
 {%- endif %}
 let find_ep = find_builder
 .build()
@@ -143,7 +143,7 @@ impl {{ target_class_name }}Command {
 {% set builder_mutable = type_manager.is_operation_supporting_params() %}
 let {{ "mut" if builder_mutable }} ep_builder = {{ sdk_mod_path[-1] }}::Request::builder();
 {%- if microversion %}
- ep_builder.header(http::header::HeaderName::from_static("OpenStack-API-Version"), http::header::HeaderValue::from_static("{{ "volume" if service_type == "block-storage" else service_type }} {{ microversion }}"));
+ ep_builder.header(http::header::HeaderName::from_static("openstack-api-version"), http::header::HeaderValue::from_static("{{ "volume" if service_type == "block-storage" else service_type }} {{ microversion }}"));
 {%- endif %}
 {{ macros.set_cli_path_parameters(type_manager, "ep_builder") }}
 {% include 'rust_cli/set_query_parameters.j2' %}
</div><div class="naked_ctrl">
<form action="/index.cgi/larger-text" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://opendev.org/openstack/codegenerator/commit/3ac902ebd9f3bc994de29d8cfe7b6a01e7516175.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://opendev.org/openstack/codegenerator/commit/3ac902ebd9f3bc994de29d8cfe7b6a01e7516175.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast">配色反転</option>
<option value="larger-text" selected="selected">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>