diff --git a/llvm/utils/gn/secondary/compiler-rt/lib/scudo/standalone/BUILD.gn b/llvm/utils/gn/secondary/compiler-rt/lib/scudo/standalone/BUILD.gn
index 172adae3af1aa..ed581d8f75998 100644
--- a/llvm/utils/gn/secondary/compiler-rt/lib/scudo/standalone/BUILD.gn
+++ b/llvm/utils/gn/secondary/compiler-rt/lib/scudo/standalone/BUILD.gn
@@ -10,6 +10,7 @@ source_set("sources") {
   configs += [ "//llvm/utils/gn/build:crt_code" ]
   cflags = scudo_cflags
   sources = [
+    "allocator_common.h",
     "allocator_config.h",
     "atomic_helpers.h",
     "bytemap.h",