diff --git a/cache/solidity-files-cache.json b/cache/solidity-files-cache.json
index 3c00b046..ed7c3b78 100644
--- a/cache/solidity-files-cache.json
+++ b/cache/solidity-files-cache.json
@@ -6607,8 +6607,8 @@
       }
     },
     "src/other/contango/ContangoWand.sol": {
-      "lastModificationDate": 1677603976743,
-      "contentHash": "b410c3dbd14924d2a3cdfb96ab9c9989",
+      "lastModificationDate": 1677605001004,
+      "contentHash": "61c7561599ce636f8e1490bc5061af1d",
       "sourceName": "src/other/contango/ContangoWand.sol",
       "solcConfig": {
         "settings": {
@@ -9796,8 +9796,8 @@
       }
     },
     "src/test/other/contango/ContangoWand.t.sol": {
-      "lastModificationDate": 1677604705969,
-      "contentHash": "f296e340cac233ca73e104027cd8b6a3",
+      "lastModificationDate": 1677605131493,
+      "contentHash": "6a6d1060eb6289364ab6c03f0a87878a",
       "sourceName": "src/test/other/contango/ContangoWand.t.sol",
       "solcConfig": {
         "settings": {
@@ -9828,6 +9828,8 @@
         }
       },
       "imports": [
+        "lib/ERC3156/contracts/interfaces/IERC3156FlashBorrower.sol",
+        "lib/ERC3156/contracts/interfaces/IERC3156FlashLender.sol",
         "lib/dss-interfaces/src/dss/DaiAbstract.sol",
         "lib/forge-std/lib/ds-test/src/test.sol",
         "lib/forge-std/src/Base.sol",
@@ -9860,6 +9862,7 @@
         "lib/yieldspace-tv/src/interfaces/IPool.sol",
         "lib/yieldspace-tv/src/interfaces/IPoolOracle.sol",
         "src/Cauldron.sol",
+        "src/Join.sol",
         "src/Ladle.sol",
         "src/LadleStorage.sol",
         "src/Router.sol",
@@ -9870,6 +9873,7 @@
         "src/interfaces/IERC5095.sol",
         "src/interfaces/IFYToken.sol",
         "src/interfaces/IJoin.sol",
+        "src/interfaces/IJoinFactory.sol",
         "src/interfaces/ILadle.sol",
         "src/interfaces/ILadleGov.sol",
         "src/interfaces/IOracle.sol",
diff --git a/src/other/contango/ContangoWand.sol b/src/other/contango/ContangoWand.sol
index bb3b2b29..7e28616c 100644
--- a/src/other/contango/ContangoWand.sol
+++ b/src/other/contango/ContangoWand.sol
@@ -205,7 +205,7 @@ contract ContangoWand is AccessControl {
 
     /// @notice Add join to the Ladle.
     /// @dev These will often be used to hold fyToken, so it doesn't seem possible to put boundaries. However, it seems low risk. Famous last words.
-    function addJoin(bytes6 assetId, address join) external auth {
-        contangoLadle.addJoin(assetId, IJoin(join));
+    function addJoin(bytes6 assetId, IJoin join) external auth {
+        contangoLadle.addJoin(assetId, join);
     }
 }
diff --git a/src/test/other/contango/ContangoWand.t.sol b/src/test/other/contango/ContangoWand.t.sol
index f4a9547c..9cd4c6ba 100644
--- a/src/test/other/contango/ContangoWand.t.sol
+++ b/src/test/other/contango/ContangoWand.t.sol
@@ -6,6 +6,7 @@ import "../../utils/TestConstants.sol";
 import "../../utils/Mocks.sol";
 
 import "../../../Cauldron.sol";
+import "../../../Join.sol";
 import "../../../other/contango/ContangoLadle.sol";
 import "../../../other/contango/ContangoWand.sol";
 
@@ -70,6 +71,8 @@ contract ContangoWandTest is Test, TestConstants {
         wand.grantRole(wand.addIntegration.selector, address(this));
         AccessControl(address(contangoLadle)).grantRole(ILadle.addToken.selector, address(wand));
         wand.grantRole(wand.addToken.selector, address(this));
+        AccessControl(address(contangoLadle)).grantRole(ILadle.addJoin.selector, address(wand));
+        wand.grantRole(wand.addJoin.selector, address(this));
         vm.stopPrank();
     }
 
@@ -410,4 +413,20 @@ contract ContangoWandTest is Test, TestConstants {
 
         assertTrue(contangoLadle.tokens(0xad1983745D6c739537fEaB5bed45795f47A940b3), "yield integration");
     }
+
+    function testAddJoin_Auth() public {
+        vm.prank(bob);
+        vm.expectRevert("Access denied");
+        wand.addJoin(FYUSDT2306, IJoin(address(0)));
+    }
+
+    function testAddJoin() public {
+        wand.addAsset(USDT);
+
+        IJoin join = new Join(contangoCauldron.assets(USDT));
+
+        wand.addJoin(USDT, join);
+
+        assertEq(address(contangoLadle.joins(USDT)), address(join), "pool");
+    }
 }