diff --git a/package/copr/lune.spec b/package/copr/lune.spec
index 375fe5b..87e815b 100644
--- a/package/copr/lune.spec
+++ b/package/copr/lune.spec
@@ -17,7 +17,10 @@ BuildRequires: rust
 BuildRequires: cargo
 BuildRequires: just
 BuildRequires: clang
+%ifarch x86_64
+BuildRequires: aarch64-linux-gnu-gcc
 BuildRequires: musl-devel
+%endif
 
 
 Requires: libstdc++