diff --git a/packages/core/src/flag/flag.ts b/packages/core/src/flag/flag.ts
index 94da038fa5..9b556c3aa7 100644
--- a/packages/core/src/flag/flag.ts
+++ b/packages/core/src/flag/flag.ts
@@ -29,7 +29,6 @@ export const Flag = {
   OPENCODE_FAKE_VCS: process.env["OPENCODE_FAKE_VCS"],
   OPENCODE_SERVER_PASSWORD: process.env["OPENCODE_SERVER_PASSWORD"],
   OPENCODE_SERVER_USERNAME: process.env["OPENCODE_SERVER_USERNAME"],
-  OPENCODE_SIMULATION: truthy("OPENCODE_SIMULATION"),
   OPENCODE_SIMULATION,
   OPENCODE_SIMULATION_BACKEND: OPENCODE_SIMULATION || truthy("OPENCODE_SIMULATION_BACKEND"),