diff --git a/juliaup.spec b/juliaup.spec
index 3c9cd47..f0298c6 100644
--- a/juliaup.spec
+++ b/juliaup.spec
@@ -32,6 +32,7 @@ Source1:        vendor.tar.zst
 Source2:        cargo_config
 BuildRequires:  cargo-packaging
 BuildRequires:  rust+cargo
+BuildRequires:  zstd
 ExclusiveArch:  %{rust_tier1_arches}
 
 # It doesn't make sense to do this anyway.