diff --git a/ippl/src/Particle/CMakeLists.txt b/ippl/src/Particle/CMakeLists.txt
index 58bf47b106f4e067293cccdd813feb4569e28624..e648eeb6ec56d2cc55150d0682cf66f8d280f535 100644
--- a/ippl/src/Particle/CMakeLists.txt
+++ b/ippl/src/Particle/CMakeLists.txt
@@ -33,7 +33,6 @@ set (_HDRS
     ParticleInteractLayout.hpp
     ParticleInteractLayout.h
     ParticleLayout.hpp
-    ParticleLayoutFromGrid.h
     ParticleLayout.h
     ParticleSpatialLayout.hpp
     ParticleSpatialLayout.h
diff --git a/ippl/src/Utility/CMakeLists.txt b/ippl/src/Utility/CMakeLists.txt
index 98b3d764cce73dd098e88bcdb8469b3132988252..94a92967d226b5fa62bc8d3400a57aebefa8bacc 100644
--- a/ippl/src/Utility/CMakeLists.txt
+++ b/ippl/src/Utility/CMakeLists.txt
@@ -54,7 +54,6 @@ set (_HDRS
     RNGAssignDefs.h
     RNGXDiv.h
     RandomNumberGen.h
-    RefBlock.h
     RefCounted.h
     SequenceGen.h
     StaticIpplInfo.h