diff --git a/packages/next-swc/crates/core/src/relay.rs b/packages/next-swc/crates/core/src/relay.rs
index dfae8c6ccf16d3c..0c4484270bafc62 100644
--- a/packages/next-swc/crates/core/src/relay.rs
+++ b/packages/next-swc/crates/core/src/relay.rs
@@ -15,6 +15,7 @@ use swc_core::{
 #[serde(rename_all = "lowercase")]
 pub enum RelayLanguageConfig {
     TypeScript,
+    JavaScript,
     Flow,
 }
 
@@ -99,6 +100,9 @@ impl<'a> Relay<'a> {
             RelayLanguageConfig::TypeScript => {
                 format!("{}.graphql.ts", definition_name)
             }
+            RelayLanguageConfig::JavaScript => {
+                format!("{}.graphql.js", definition_name)
+            }
         };
 
         if let Some(artifact_directory) = &self.config.artifact_directory {
diff --git a/packages/next-swc/crates/core/tests/telemetry.rs b/packages/next-swc/crates/core/tests/telemetry.rs
index 50bdb102ca4e7b6..c0f99b160d21949 100644
--- a/packages/next-swc/crates/core/tests/telemetry.rs
+++ b/packages/next-swc/crates/core/tests/telemetry.rs
@@ -48,7 +48,7 @@ export function getServerSideProps() {
                     None,
                     handler,
                     &Default::default(),
-                    comments.clone(),
+                    comments,
                     |_| next_ssg(eliminated_packages.clone()),
                     |_| noop(),
                 )
diff --git a/packages/next/server/config-shared.ts b/packages/next/server/config-shared.ts
index f9b99a800ab8aad..b3b0878401da298 100644
--- a/packages/next/server/config-shared.ts
+++ b/packages/next/server/config-shared.ts
@@ -460,7 +460,7 @@ export interface NextConfig extends Record<string, any> {
     relay?: {
       src: string
       artifactDirectory?: string
-      language?: 'typescript' | 'flow'
+      language?: 'typescript' | 'javascript' | 'flow'
     }
     removeConsole?:
       | boolean