diff --git a/src/node.cc b/src/node.cc
index f079519fe3..2d32b126e1 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -165,7 +165,9 @@ ArrayBufferAllocator ArrayBufferAllocator::the_singleton;
 void* ArrayBufferAllocator::Allocate(size_t length) {
   if (length > kMaxLength)
     return NULL;
-  return new char[length];
+  char* data = new char[length];
+  memset(data, 0, length);
+  return data;
 }