diff --git a/.github/workflows/snapshots.yml b/.github/workflows/snapshots.yml
index 908ca89411..6fb31c238b 100644
--- a/.github/workflows/snapshots.yml
+++ b/.github/workflows/snapshots.yml
@@ -22,7 +22,8 @@ jobs:
             arguments: "check -x :reactor-core:test -x spotlessCheck -x :reactor-core:jcstress --no-daemon -DuseSnapshotMicrometerVersion=true"
         exclude:
           - branch: 3.5.x
-            test-type: core-fast-java21
+            test-type:
+              type: core-fast-java21
     name: Test on ${{ matrix.branch }} - ${{ matrix.test-type.type }} tests
     steps:
       - name: Checkout Repository