diff --git a/llm/generate/gen_darwin.sh b/llm/generate/gen_darwin.sh
index 6dc09987..3a57d0cb 100755
--- a/llm/generate/gen_darwin.sh
+++ b/llm/generate/gen_darwin.sh
@@ -18,7 +18,7 @@ case "${GOARCH}" in
     ;;
 "arm64")
     CMAKE_DEFS="-DCMAKE_SYSTEM_PROCESSOR=arm64 -DCMAKE_OSX_ARCHITECTURES=arm64 -DLLAMA_METAL=on ${CMAKE_DEFS}"
-    ARHC="arm64"
+    ARCH="arm64"
     ;;
 *)
     echo "GOARCH must be set"