diff --git a/artiq-fast/pkgs/llvm-or1k.nix b/artiq-fast/pkgs/llvm-or1k.nix
index 396dda8..8340375 100644
--- a/artiq-fast/pkgs/llvm-or1k.nix
+++ b/artiq-fast/pkgs/llvm-or1k.nix
@@ -40,7 +40,7 @@ in
       "-DCMAKE_BUILD_TYPE=Release"
       "-DLLVM_BUILD_LLVM_DYLIB=ON"
       "-DLLVM_LINK_LLVM_DYLIB=ON"
-      "-DLLVM_TARGETS_TO_BUILD=X86"
+      "-DLLVM_TARGETS_TO_BUILD=X86;ARM"
       "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=OR1K"
       "-DLLVM_ENABLE_ASSERTIONS=OFF"
       "-DLLVM_INSTALL_UTILS=ON"