diff --git a/migrations/4_deploy_mixer.js b/migrations/4_deploy_mixer.js
index a1af47e..3eec4ba 100644
--- a/migrations/4_deploy_mixer.js
+++ b/migrations/4_deploy_mixer.js
@@ -8,7 +8,7 @@ module.exports = function(deployer) {
   return deployer.then(async () => {
     const { MERKLE_TREE_HEIGHT, AMOUNT, EMPTY_ELEMENT } = process.env
     const verifier = await Verifier.deployed()
-    const miMC = MiMC.deployed()
+    const miMC = await MiMC.deployed()
     await Mixer.link(MiMC, miMC.address)
     await deployer.deploy(Mixer, verifier.address, AMOUNT, MERKLE_TREE_HEIGHT, EMPTY_ELEMENT)
   })