diff --git a/FuzzerExtFunctions.def b/FuzzerExtFunctions.def
index 288a59c..41fa0fd 100644
--- a/FuzzerExtFunctions.def
+++ b/FuzzerExtFunctions.def
@@ -46,3 +46,4 @@
 EXT_FUNC(__msan_scoped_disable_interceptor_checks, void, (), false);
 EXT_FUNC(__msan_scoped_enable_interceptor_checks, void, (), false);
 EXT_FUNC(__msan_unpoison, void, (const volatile void *, size_t size), false);
+EXT_FUNC(__msan_unpoison_param, void, (size_t n), false);
diff --git a/FuzzerLoop.cpp b/FuzzerLoop.cpp
index d1ad3e3..cb3d821 100644
--- a/FuzzerLoop.cpp
+++ b/FuzzerLoop.cpp
@@ -542,6 +542,8 @@
   memcpy(DataCopy, Data, Size);
   if (EF->__msan_unpoison)
     EF->__msan_unpoison(DataCopy, Size);
+  if (EF->__msan_unpoison_param)
+    EF->__msan_unpoison_param(2);
   if (CurrentUnitData && CurrentUnitData != Data)
     memcpy(CurrentUnitData, Data, Size);
   CurrentUnitSize = Size;
@@ -702,7 +704,7 @@
       break;  // We will mutate this input more in the next rounds.
     }
     if (Options.ReduceDepth && !FoundUniqFeatures)
-        break;
+      break;
   }
 }