diff --git a/lib/msan/msan.cc b/lib/msan/msan.cc
index dd5e31b..dc11ed0 100644
--- a/lib/msan/msan.cc
+++ b/lib/msan/msan.cc
@@ -244,7 +244,8 @@
   InitTlsSize();
   InitializeInterceptors();
 
-  ReplaceOperatorsNewAndDelete();
+  if (MSAN_REPLACE_OPERATORS_NEW_AND_DELETE)
+    ReplaceOperatorsNewAndDelete();
   const char *msan_options = GetEnv("MSAN_OPTIONS");
   InitializeFlags(&msan_flags, msan_options);
   if (StackSizeIsUnlimited()) {
diff --git a/lib/msan/msan.h b/lib/msan/msan.h
index 1880b8e..90f30af 100644
--- a/lib/msan/msan.h
+++ b/lib/msan/msan.h
@@ -20,6 +20,10 @@
 #include "msan_interface_internal.h"
 #include "msan_flags.h"
 
+#ifndef MSAN_REPLACE_OPERATORS_NEW_AND_DELETE
+# define MSAN_REPLACE_OPERATORS_NEW_AND_DELETE 1
+#endif
+
 #define MEM_TO_SHADOW(mem) (((uptr)mem)       & ~0x400000000000ULL)
 #define MEM_TO_ORIGIN(mem) (MEM_TO_SHADOW(mem) + 0x200000000000ULL)
 #define MEM_IS_APP(mem)    ((uptr)mem >=         0x600000000000ULL)