diff --git a/Source/Diagnostics/ComputeDiagFunctors/Make.package b/Source/Diagnostics/ComputeDiagFunctors/Make.package
index 0fd618748e3..852722151f0 100644
--- a/Source/Diagnostics/ComputeDiagFunctors/Make.package
+++ b/Source/Diagnostics/ComputeDiagFunctors/Make.package
@@ -10,5 +10,6 @@ CEXE_sources += BackTransformFunctor.cpp
 CEXE_sources += BackTransformParticleFunctor.cpp
 CEXE_sources += ParticleReductionFunctor.cpp
 CEXE_sources += TemperatureFunctor.cpp
+CEXE_sources += ProcessorMap.cpp
 
 VPATH_LOCATIONS   += $(WARPX_HOME)/Source/Diagnostics/ComputeDiagFunctors