diff --git a/src/frame_base.cpp b/src/frame_base.cpp
index 326cc899c810a962689807bac2dc59cc3c0fe1bf..280c68c17b6780b2a551e736a3c3b445482ddd3a 100644
--- a/src/frame_base.cpp
+++ b/src/frame_base.cpp
@@ -23,11 +23,15 @@ FrameBase::FrameBase(const TimeStamp& _ts, StateBlockPtr _p_ptr, StateBlockPtr _
     state_block_vec_[0] = _p_ptr;
     state_block_vec_[1] = _o_ptr;
     state_block_vec_[2] = _v_ptr;
-    //
-//    if (isKey())
-//        std::cout << "constructed +KF" << id() << std::endl;
-//    else
-//        std::cout << "constructed  +F" << id() << std::endl;
+
+    if ( isKey() )
+    {
+        WOLF_INFO("constructed +KF", this->id() );
+    }
+    else
+    {
+        WOLF_INFO("constructed + F", this->id() );
+    }
 }
 
 FrameBase::FrameBase(const FrameType & _tp, const TimeStamp& _ts, StateBlockPtr _p_ptr, StateBlockPtr _o_ptr, StateBlockPtr _v_ptr) :
@@ -43,10 +47,14 @@ FrameBase::FrameBase(const FrameType & _tp, const TimeStamp& _ts, StateBlockPtr
     state_block_vec_[1] = _o_ptr;
     state_block_vec_[2] = _v_ptr;
 
-//    if (isKey())
-//        std::cout << "constructed +KF" << id() << std::endl;
-//    else
-//        std::cout << "constructed  +F" << id() << std::endl;
+    if ( isKey() )
+    {
+        WOLF_INFO("constructed +KF", this->id() );
+    }
+    else
+    {
+        WOLF_INFO("constructed + F", this->id() );
+    }
 }
                 
 FrameBase::~FrameBase()