diff --git a/test/simple-memory-corruption/Makefile b/test/simple-memory-corruption/Makefile
index 2135f7e..7c4fd06 100644
--- a/test/simple-memory-corruption/Makefile
+++ b/test/simple-memory-corruption/Makefile
@@ -1,6 +1,8 @@
 dir=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
 
 CONFIG_SLAB_CANARY := true
+# Clang 13 still doesn't enable sized deallocation by default
+CXXFLAGS := -std=c++17 -fsized-deallocation
 
 ifeq (,$(filter $(CONFIG_SLAB_CANARY),true false))
     $(error CONFIG_SLAB_CANARY must be true or false)