diff --git a/.buildkite/pipelines/main/0_webui.yml b/.buildkite/pipelines/main/0_webui.yml
index 96dc81cef36fea..8e7b9c58ea423b 100644
--- a/.buildkite/pipelines/main/0_webui.yml
+++ b/.buildkite/pipelines/main/0_webui.yml
@@ -21,4 +21,4 @@ steps:
           # verifies the treehash of the pipeline itself and the inputs listed in `inputs`
           signed_pipelines:
             - pipeline: .buildkite/pipelines/main/misc/signed_pipeline_test.yml
-              signature: "U2FsdGVkX18ZrMlORSIi0TvW99eZ3JyUEhntMyXjrOSJ9jAtUohgHc8+dMnWUc6qWjYt8k63wfPrth33SGWDiF814Bm1W5Zk3+R6HgVu6UCrQEI5sLm+SJPbrvET+Jkn"
+              signature_file: .buildkite/pipelines/main/misc/signed_pipeline_test.yml.signature
diff --git a/.buildkite/pipelines/main/misc/signed_pipeline_test.yml.signature b/.buildkite/pipelines/main/misc/signed_pipeline_test.yml.signature
new file mode 100644
index 00000000000000..81904923a04fac
--- /dev/null
+++ b/.buildkite/pipelines/main/misc/signed_pipeline_test.yml.signature
@@ -0,0 +1 @@
+U2FsdGVkX18ZrMlORSIi0TvW99eZ3JyUEhntMyXjrOSJ9jAtUohgHc8+dMnWUc6qWjYt8k63wfPrth33SGWDiF814Bm1W5Zk3+R6HgVu6UCrQEI5sLm+SJPbrvET+Jkn