diff --git a/external/mallocng/CMakeLists.txt b/external/mallocng/CMakeLists.txt
index 50b841c..c3d2422 100644
--- a/external/mallocng/CMakeLists.txt
+++ b/external/mallocng/CMakeLists.txt
@@ -24,6 +24,8 @@ PRIVATE
     malloc_usable_size.c
     meta.h
     glue.h
+    valloc.c
+    pvalloc.c
 )
 
 target_compile_options(external_mallocng_bundled
@@ -42,11 +44,3 @@ INTERFACE
     external_mallocng_bundled
     -Wl,--no-whole-archive
 )
-
-target_compile_options(external_mallocng
-INTERFACE
-    -fno-builtin-malloc
-    -fno-builtin-calloc
-    -fno-builtin-realloc
-    -fno-builtin-free
-)