diff --git a/mk/main.mk b/mk/main.mk
index 9762b482ce9..a5a4869ae9a 100644
--- a/mk/main.mk
+++ b/mk/main.mk
@@ -201,6 +201,7 @@ endif
 
 ifdef CFG_ENABLE_VALGRIND
   $(info cfg: enabling valgrind (CFG_ENABLE_VALGRIND))
+  CFG_JEMALLOC_FLAGS += --enable-valgrind
 else
   CFG_VALGRIND :=
 endif