diff --git a/llvm/utils/gn/build/toolchain/BUILD.gn b/llvm/utils/gn/build/toolchain/BUILD.gn
--- a/llvm/utils/gn/build/toolchain/BUILD.gn
+++ b/llvm/utils/gn/build/toolchain/BUILD.gn
@@ -225,7 +225,7 @@
   }
 
   tool("alink") {
-    command = "lib /nologo {{arflags}} /out:{{output}} {{inputs}}"
+    command = "$link /lib /nologo {{arflags}} /out:{{output}} {{inputs}}"
     description = "LIB {{output}}"
     outputs = [
       "{{output_dir}}/{{target_output_name}}.lib",