diff --git a/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.cxx b/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.cxx
index 2491f08ee73933f90093f282127fe4c4f8a024d0..d7fb3422950d514c78c2f4c61a11d29916f211c8 100644
--- a/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.cxx
+++ b/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.cxx
@@ -43,7 +43,6 @@
 #include "InDetIdentifier/SCT_ID.h"
 #include "InDetIdentifier/PixelID.h" 
 
-#include "TrigInDetPattRecoEvent/TrigL2TimeoutException.h"
 #include "TrigInDetPattRecoEvent/TrigInDetTriplet.h"
 
 
diff --git a/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.h b/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.h
index e44ad23760b606c2a32dfb2f2361228622c0da22..164f2e79b2fd5206bf02117bded7bb6717eaa154 100644
--- a/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.h
+++ b/Trigger/TrigAlgorithms/TrigFastTrackFinder/src/TrigFastTrackFinder.h
@@ -34,17 +34,14 @@
 #include "AthenaMonitoringKernel/Monitored.h"
 
 class ITrigL2LayerNumberTool;
-class ITrigL2LayerSetPredictorTool;
 class ITrigSpacePointConversionTool;
 class ITrigL2ResidualCalculator;
 class ITrigInDetTrackFitter;
 class ITrigZFinder;
 class TrigRoiDescriptor;
-class TrigSiSpacePointBase;
 class Identifier;
 namespace InDet { 
-  class SiSpacePointsSeed;
-  class ISiTrackMaker; 
+  class ISiTrackMaker;
   class SiTrackMakerEventData_xk;
 }
 
@@ -53,9 +50,6 @@ namespace Trk {
   class SpacePoint;
 }
 
-class TrigL2LayerSetLUT;
-class TrigSpacePointStorage;
-class TrigInDetTriplet;
 class PixelID;
 class SCT_ID;
 class AtlasDetectorID;