diff --git a/deps/llvm.mk b/deps/llvm.mk
index 1eda48f91b..d478a3679e 100644
--- a/deps/llvm.mk
+++ b/deps/llvm.mk
@@ -81,6 +81,7 @@ LLVM_CMAKE += -DPOLLY_ENABLE_GPGPU_CODEGEN=ON
 endif
 LLVM_CMAKE += -DLLVM_TOOLS_INSTALL_DIR=$(call rel_path,$(build_prefix),$(build_depsbindir))
 LLVM_CMAKE += -DLLVM_UTILS_INSTALL_DIR=$(call rel_path,$(build_prefix),$(build_depsbindir))
+LLVM_CMAKE += -DLLVM_LIBDIR_SUFFIX=64
 LLVM_CMAKE += -DLLVM_INCLUDE_UTILS=ON -DLLVM_INSTALL_UTILS=ON
 LLVM_CMAKE += -DLLVM_BINDINGS_LIST="" -DLLVM_INCLUDE_DOCS=Off -DLLVM_ENABLE_TERMINFO=Off -DHAVE_HISTEDIT_H=Off -DHAVE_LIBEDIT=Off
 ifeq ($(LLVM_ASSERTIONS), 1)