diff --git a/src/node.cc b/src/node.cc
index 11c6a7de8e..4af11e2c48 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -425,6 +425,7 @@ static Handle<Value> Loop(const Arguments& args) {
 }
 
 static Handle<Value> Unloop(const Arguments& args) {
+  fprintf(stderr, "Node.js Depreciation: Don't use process.unloop(). It will be removed soon.\n");
   HandleScope scope;
   int how = EVUNLOOP_ONE;
   if (args[0]->IsString()) {