diff --git a/.prettierignore b/.prettierignore
index 5ebf707bf74a..12101edba09a 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -538,3 +538,4 @@ toolkit/components/pdfjs/content/PdfJsDefaultPreferences.sys.mjs
 toolkit/components/uniffi-js/UniFFIGeneratedScaffolding.cpp
 toolkit/components/uniffi-js/UniFFIFixtureScaffolding.cpp
 toolkit/components/uniffi-bindgen-gecko-js/fixtures/generated
+try_task_config.json
diff --git a/tools/rewriting/Generated.txt b/tools/rewriting/Generated.txt
index c8c2ea9030b7..606101a9ea90 100644
--- a/tools/rewriting/Generated.txt
+++ b/tools/rewriting/Generated.txt
@@ -15,3 +15,4 @@ toolkit/components/pdfjs/content/PdfJsDefaultPreferences.sys.mjs
 toolkit/components/uniffi-js/UniFFIGeneratedScaffolding.cpp
 toolkit/components/uniffi-js/UniFFIFixtureScaffolding.cpp
 toolkit/components/uniffi-bindgen-gecko-js/fixtures/generated
+try_task_config.json