diff --git a/ProcessLib/SmallDeformationNonlocal/SmallDeformationNonlocalProcess.h b/ProcessLib/SmallDeformationNonlocal/SmallDeformationNonlocalProcess.h
index 1aa73c898879c7e787058749434053dbfdf848ba..ce4eb2e789bcc461a05eb76cdce4206ad9a7c357 100644
--- a/ProcessLib/SmallDeformationNonlocal/SmallDeformationNonlocalProcess.h
+++ b/ProcessLib/SmallDeformationNonlocal/SmallDeformationNonlocalProcess.h
@@ -12,7 +12,6 @@
 
 #include <cassert>
 
-#include "BaseLib/Functional.h"
 #include "NumLib/DOF/DOFTableUtil.h"
 #include "ProcessLib/Process.h"
 
diff --git a/ProcessLib/ThermalTwoPhaseFlowWithPP/CreateThermalTwoPhaseFlowWithPPProcess.cpp b/ProcessLib/ThermalTwoPhaseFlowWithPP/CreateThermalTwoPhaseFlowWithPPProcess.cpp
index b9701df23247b84f54920a844014bfd7c3ddfe4a..82ebe78cfeffeefa641efd388ea675466f045934 100644
--- a/ProcessLib/ThermalTwoPhaseFlowWithPP/CreateThermalTwoPhaseFlowWithPPProcess.cpp
+++ b/ProcessLib/ThermalTwoPhaseFlowWithPP/CreateThermalTwoPhaseFlowWithPPProcess.cpp
@@ -11,7 +11,6 @@
 
 #include <cassert>
 
-#include "BaseLib/Functional.h"
 #include "MeshLib/MeshGenerators/MeshGenerator.h"
 #include "ParameterLib/ConstantParameter.h"
 #include "ParameterLib/Utils.h"
diff --git a/ProcessLib/ThermoMechanics/ThermoMechanicsProcess.cpp b/ProcessLib/ThermoMechanics/ThermoMechanicsProcess.cpp
index 8a32c90e5938b8eb0cc799756525fe2f96beb6a6..5bba6a26d6e7718a2f281a6e10c19d4a624aaed2 100644
--- a/ProcessLib/ThermoMechanics/ThermoMechanicsProcess.cpp
+++ b/ProcessLib/ThermoMechanics/ThermoMechanicsProcess.cpp
@@ -12,7 +12,6 @@
 
 #include <cassert>
 
-#include "BaseLib/Functional.h"
 #include "NumLib/DOF/ComputeSparsityPattern.h"
 #include "NumLib/DOF/DOFTableUtil.h"
 #include "ProcessLib/Output/IntegrationPointWriter.h"
diff --git a/ProcessLib/TwoPhaseFlowWithPrho/CreateTwoPhaseFlowWithPrhoProcess.cpp b/ProcessLib/TwoPhaseFlowWithPrho/CreateTwoPhaseFlowWithPrhoProcess.cpp
index 6b1add57efeee6c19a06486dd00d2b53356ebf61..1e58ea019b942b55e404672d7d171ea7764c2027 100644
--- a/ProcessLib/TwoPhaseFlowWithPrho/CreateTwoPhaseFlowWithPrhoProcess.cpp
+++ b/ProcessLib/TwoPhaseFlowWithPrho/CreateTwoPhaseFlowWithPrhoProcess.cpp
@@ -9,7 +9,6 @@
  */
 #include "CreateTwoPhaseFlowWithPrhoProcess.h"
 #include <cassert>
-#include "BaseLib/Functional.h"
 #include "MeshLib/MeshGenerators/MeshGenerator.h"
 #include "ParameterLib/ConstantParameter.h"
 #include "ParameterLib/Utils.h"