diff --git a/contracts/DecentHats.sol b/contracts/DecentHats.sol
index ca791a6c..ca5e95b4 100644
--- a/contracts/DecentHats.sol
+++ b/contracts/DecentHats.sol
@@ -57,7 +57,7 @@ contract DecentHats {
         );
 
         string[] memory keys = new string[](1);
-        keys[0] = "hatsTreeId";
+        keys[0] = "topHatId";
 
         string[] memory values = new string[](1);
         values[0] = Strings.toString(topHatId);
diff --git a/test/DecentHats.test.ts b/test/DecentHats.test.ts
index 10661d09..4c862bc0 100644
--- a/test/DecentHats.test.ts
+++ b/test/DecentHats.test.ts
@@ -237,7 +237,7 @@ describe("DecentHats", () => {
       it("Emits some hatsTreeId ValueUpdated events", async () => {
         await expect(createAndDeclareTreeTx)
           .to.emit(keyValuePairs, "ValueUpdated")
-          .withArgs(gnosisSafeAddress, "hatsTreeId", "0");
+          .withArgs(gnosisSafeAddress, "topHatId", "0");
       });
 
       describe("Multiple calls", () => {
@@ -285,7 +285,7 @@ describe("DecentHats", () => {
         it("Creates Top Hats with sequential IDs", async () => {
           await expect(createAndDeclareTreeTx2)
             .to.emit(keyValuePairs, "ValueUpdated")
-            .withArgs(gnosisSafeAddress, "hatsTreeId", "4");
+            .withArgs(gnosisSafeAddress, "topHatId", "4");
         });
       });