diff --git a/src/dist/cache.rs b/src/dist/cache.rs
index 72e9c3d66..e5db21b72 100644
--- a/src/dist/cache.rs
+++ b/src/dist/cache.rs
@@ -302,7 +302,10 @@ mod client {
                 Box::new(PanicToolchainPackager)
             }
         }
-        #[cfg(target_os = "linux")]
+        #[cfg(all(
+            target_os = "linux",
+            any(target_arch = "x86_64", target_arch = "aarch64")
+        ))]
         impl crate::dist::pkg::ToolchainPackager for PanicToolchainPackager {
             fn write_pkg(self: Box<Self>, _f: super::fs::File) -> crate::errors::Result<()> {
                 panic!("should not have called packager")