diff --git a/src/doctor.test.ts b/src/doctor.test.ts
index de57ba3..3673ff8 100644
--- a/src/doctor.test.ts
+++ b/src/doctor.test.ts
@@ -81,7 +81,7 @@ describe('json token helpers', () => {
       },
     }), 'abc123');
     const parsed = JSON.parse(next);
-    expect(parsed.mcp.playwright.env.PLAYWRIGHT_MCP_EXTENSION_TOKEN).toBe('abc123');
+    expect(parsed.mcp.playwright.environment.PLAYWRIGHT_MCP_EXTENSION_TOKEN).toBe('abc123');
   });
 });
 
diff --git a/src/doctor.ts b/src/doctor.ts
index 9e3719b..9e7f43a 100644
--- a/src/doctor.ts
+++ b/src/doctor.ts
@@ -157,7 +157,7 @@ function readJsonConfigToken(content: string): string | null {
 function readTokenFromJsonObject(parsed: any): string | null {
   const direct = parsed?.mcpServers?.[PLAYWRIGHT_SERVER_NAME]?.env?.[PLAYWRIGHT_TOKEN_ENV];
   if (typeof direct === 'string' && direct) return direct;
-  const opencode = parsed?.mcp?.[PLAYWRIGHT_SERVER_NAME]?.env?.[PLAYWRIGHT_TOKEN_ENV];
+  const opencode = parsed?.mcp?.[PLAYWRIGHT_SERVER_NAME]?.environment?.[PLAYWRIGHT_TOKEN_ENV];
   if (typeof opencode === 'string' && opencode) return opencode;
   return null;
 }
@@ -178,8 +178,8 @@ export function upsertJsonConfigToken(content: string, token: string): string {
       enabled: true,
       type: 'local',
     };
-    parsed.mcp[PLAYWRIGHT_SERVER_NAME].env = parsed.mcp[PLAYWRIGHT_SERVER_NAME].env ?? {};
-    parsed.mcp[PLAYWRIGHT_SERVER_NAME].env[PLAYWRIGHT_TOKEN_ENV] = token;
+    parsed.mcp[PLAYWRIGHT_SERVER_NAME].environment = parsed.mcp[PLAYWRIGHT_SERVER_NAME].environment ?? {};
+    parsed.mcp[PLAYWRIGHT_SERVER_NAME].environment[PLAYWRIGHT_TOKEN_ENV] = token;
   }
   return `${JSON.stringify(parsed, null, 2)}\n`;
 }