diff --git a/external/mallocng/CMakeLists.txt b/external/mallocng/CMakeLists.txt
index 34b97ed..cfe42a8 100644
--- a/external/mallocng/CMakeLists.txt
+++ b/external/mallocng/CMakeLists.txt
@@ -24,6 +24,11 @@ PRIVATE
     glue.h
 )
 
+target_compile_options(external_mallocng
+PRIVATE
+    -Wno-unused-value
+)
+
 target_include_directories(external_mallocng
 PRIVATE
     ${mallocng_loc}