diff --git a/InnerDetector/InDetRecTools/SiClusterizationTool/src/TTrainedNetworkCondAlg.h b/InnerDetector/InDetRecTools/SiClusterizationTool/src/TTrainedNetworkCondAlg.h
index 924915b8e83668b0fb12bff22795080d0f82969b..98dff2722f38459c5bd6c7eb242f084fe46dec91 100644
--- a/InnerDetector/InDetRecTools/SiClusterizationTool/src/TTrainedNetworkCondAlg.h
+++ b/InnerDetector/InDetRecTools/SiClusterizationTool/src/TTrainedNetworkCondAlg.h
@@ -18,6 +18,8 @@
 #include "AthenaPoolUtilities/CondAttrListCollection.h"
 #include <string>
 
+#include "TFile.h"
+
 class IPoolSvc;
 class TTrainedNetwork;
 
diff --git a/Reconstruction/egamma/egammaMVACalib/src/egammaMVACalibTool.cxx b/Reconstruction/egamma/egammaMVACalib/src/egammaMVACalibTool.cxx
index b0a60265175ddc2c38ffdec2bfa8e40b01f42a63..6ae4651b72c7bda0b1cd7c03c558f94495cde9dc 100644
--- a/Reconstruction/egamma/egammaMVACalib/src/egammaMVACalibTool.cxx
+++ b/Reconstruction/egamma/egammaMVACalib/src/egammaMVACalibTool.cxx
@@ -8,6 +8,7 @@
 
 #include "TFile.h"
 #include "TMath.h"
+#include "TObjString.h"
 
 #include <cmath>