diff --git a/src/mutator.cc b/src/mutator.cc
index 90db5fb..17b3a78 100644
--- a/src/mutator.cc
+++ b/src/mutator.cc
@@ -37,7 +37,7 @@
 
 namespace {
 
-const size_t kMaxInitializeDepth = 32;
+const size_t kMaxInitializeDepth = 100;
 const uint64_t kDefaultMutateWeight = 1000000;
 
 enum class Mutation {
@@ -583,9 +583,6 @@
 
 void Mutator::InitializeMessage(Message* message, size_t max_depth) {
   assert(keep_initialized_);
-  // It's pointless but possible to have infinite recursion of required
-  // messages.
-  assert(max_depth);
   const Descriptor* descriptor = message->GetDescriptor();
   const Reflection* reflection = message->GetReflection();
   for (int i = 0; i < descriptor->field_count(); ++i) {