diff --git a/tests/setup/health-checks.ts b/tests/setup/health-checks.ts
index 3f1febb..22a6067 100644
--- a/tests/setup/health-checks.ts
+++ b/tests/setup/health-checks.ts
@@ -59,8 +59,8 @@ export async function checkRpcFunctional(rpcUrl: string, kraikenAddress?: string
     }
 
     // Step 2: Resolve the Kraiken address for the eth_call probe.
-    // Use the address supplied by the caller; fall back to deployments-local.json.
-    let resolvedKraikenAddress = kraikenAddress;
+    // Priority: caller-supplied address → STACK_KRAIKEN_ADDRESS env var → deployments-local.json.
+    let resolvedKraikenAddress = kraikenAddress ?? process.env.STACK_KRAIKEN_ADDRESS;
 
     if (!resolvedKraikenAddress) {
       const deploymentsPath = resolve(repoRoot, 'onchain', 'deployments-local.json');