diff --git a/srcgen/endpoints.rs.dt b/srcgen/endpoints.rs.dt
index 393d21f..cd8b24f 100644
--- a/srcgen/endpoints.rs.dt
+++ b/srcgen/endpoints.rs.dt
@@ -65,8 +65,11 @@ impl<'a> {{= endpoint }}<'a> {
         for (let [ route, path ] of endpointMethods)
         {
             let get = path.get;
-            if (!get)
+            if (!get) /* Only support GET parameters. */
                 continue;
+            if ((get.parameters || []).some(p => 'header' === p.in)) /* Do not support header parameter methods. */
+                continue;
+
             let operationId = get.operationId;
             let method = dotUtils.changeCase.snakeCase(operationId.slice(operationId.indexOf('.') + 1));
 
diff --git a/srcgen/meta.rs.dt b/srcgen/meta.rs.dt
index 0c28fb0..a4efd81 100644
--- a/srcgen/meta.rs.dt
+++ b/srcgen/meta.rs.dt
@@ -20,8 +20,11 @@ lazy_static! {
 {{
     for (const [ route, path ] of Object.entries(spec.paths)) {
         const get = path.get;
-        if (!get)
+        if (!get) /* Only support GET parameters. */
             continue;
+        if ((get.parameters || []).some(p => 'header' === p.in)) /* Do not support header parameter methods. */
+            continue;
+
         const operationId = get.operationId;
 }}
         map.insert("{{= route }}", "{{= operationId }}");