diff --git a/src/lib/time/timecode.cpp b/src/lib/time/timecode.cpp
index 0a7a629e5..27ffc0eae 100644
--- a/src/lib/time/timecode.cpp
+++ b/src/lib/time/timecode.cpp
@@ -48,9 +48,6 @@ namespace lib {
 namespace time {
   
   
-  TCode::~TCode()   { }  // emit VTable here....
-  
-  
   namespace format {  /* ================= Timecode implementation details ======== */ 
     
     LUMIERA_ERROR_DEFINE (INVALID_TIMECODE, "timecode format error, illegal value encountered");
diff --git a/src/lib/time/timecode.hpp b/src/lib/time/timecode.hpp
index f81df7c7f..8c93aa966 100644
--- a/src/lib/time/timecode.hpp
+++ b/src/lib/time/timecode.hpp
@@ -52,7 +52,7 @@ namespace time {
     {
       
     public:
-      virtual ~TCode();
+      virtual ~TCode() { }
       
       operator string()  const { return show(); }
       string describe()  const { return string(tcID()); }
diff --git a/src/proc/engine/engine-service.cpp b/src/proc/engine/engine-service.cpp
index 45e7a24e6..c936e4904 100644
--- a/src/proc/engine/engine-service.cpp
+++ b/src/proc/engine/engine-service.cpp
@@ -181,8 +181,6 @@ namespace engine{
   /* ===== Quality-of-Service ===== */
   
   
-  EngineService::Quality::~Quality() { } // emit vtables here...
-  
   enum CalcType {
     PLAYBACK,
     RENDER,
diff --git a/src/proc/engine/engine-service.hpp b/src/proc/engine/engine-service.hpp
index bc98a6a28..2d7a40707 100644
--- a/src/proc/engine/engine-service.hpp
+++ b/src/proc/engine/engine-service.hpp
@@ -121,7 +121,7 @@ namespace engine{
       class Quality
         {
           public:
-            virtual ~Quality();  ///< this is an Interface
+            virtual ~Quality() { };  ///< this is an Interface
         };
       
       
diff --git a/tests/library/entry-id-test.cpp b/tests/core/proc/asset/entry-id-test.cpp
similarity index 100%
rename from tests/library/entry-id-test.cpp
rename to tests/core/proc/asset/entry-id-test.cpp