--- a/browser/config/tooltool-manifests/win64/releng.manifest
+++ b/browser/config/tooltool-manifests/win64/releng.manifest
@@ -1,8 +1,20 @@
 [
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 "algorithm": "sha512",
 "filename": "mozmake.exe"
+},
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+"filename": "sccache.tar.bz2"
 }
 ]