diff --git a/arangod/Aql/ExecutionBlock.cpp b/arangod/Aql/ExecutionBlock.cpp
index 6b5886ef64..742ad600f6 100644
--- a/arangod/Aql/ExecutionBlock.cpp
+++ b/arangod/Aql/ExecutionBlock.cpp
@@ -32,7 +32,6 @@ using namespace triagens::arango;
 using namespace triagens::aql;
          
 ExecutionBlock::~ExecutionBlock () {        
-  std::cout << "EXECUTIONBLOCK DTOR\n";
   for (auto i = _dependencies.begin(); i != _dependencies.end(); ++i) {
     delete *i;
   }
diff --git a/arangod/Aql/ExecutionBlock.h b/arangod/Aql/ExecutionBlock.h
index 17ce5be9e8..a0dad193e2 100644
--- a/arangod/Aql/ExecutionBlock.h
+++ b/arangod/Aql/ExecutionBlock.h
@@ -151,7 +151,6 @@ namespace triagens {
         }
 
         ~EnumerateCollectionBlock () {
-          std::cout << "ENUMERATECOLLECTIONBLOCK DTOR\n";
         }
         
         int initialize () {
@@ -172,7 +171,7 @@ namespace triagens {
           for (size_t i = 0; i < n; ++i) {
             TRI_shaped_json_t shaped;
             TRI_EXTRACT_SHAPED_JSON_MARKER(shaped, docs[i]->getDataPtr());
-            triagens::basics::Json json(TRI_JsonShapedJson(shaper, &shaped));
+            triagens::basics::Json json(TRI_UNKNOWN_MEM_ZONE, TRI_JsonShapedJson(shaper, &shaped));
             _buffer.push_back(new AqlValue(json));
           }
           
@@ -207,7 +206,6 @@ namespace triagens {
         }
 
         ~RootBlock () {
-          std::cout << "ROOTBLOCK DTOR\n";
         } 
 
         AqlValue* getOne () {