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 03417466f1c49..edf34c2762c58 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
@@ -32,6 +32,9 @@ source_set("sources") {
     "linux.h",
     "list.h",
     "local_cache.h",
+    "mem_map.cpp",
+    "mem_map.h",
+    "mem_map_base.h",
     "memtag.h",
     "mutex.h",
     "options.h",