diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 2c7723ab5d..de184b347b 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -178,7 +178,7 @@ set(DEFAULT_PACKAGES ASPHERE BODY CLASS2 COLLOID COMPRESS DIPOLE GRANULAR
   USER-MEAMC USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE USER-NETCDF
   USER-PHONON USER-PLUMED USER-PTM USER-QTB USER-REAXC USER-SCAFACOS
   USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY USER-UEF USER-VTK
-  USER-QUIP USER-QMMM)
+  USER-QUIP USER-QMMM USER-YAFF)
 set(ACCEL_PACKAGES USER-OMP KOKKOS OPT USER-INTEL GPU)
 set(OTHER_PACKAGES CORESHELL QEQ)
 foreach(PKG ${DEFAULT_PACKAGES})
diff --git a/src/Makefile b/src/Makefile
index c58d5bd9eb..ee3159b588 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -63,7 +63,7 @@ PACKUSER = user-atc user-awpmd user-bocs user-cgdna user-cgsdk user-colvars \
 	   user-mgpt user-misc user-mofff user-molfile \
 	   user-netcdf user-omp user-phonon user-plumed user-ptm user-qmmm \
 	   user-qtb user-quip user-reaxc user-scafacos user-smd user-smtbq \
-	   user-sdpd user-sph user-tally user-uef user-vtk
+	   user-sdpd user-sph user-tally user-uef user-vtk user-yaff
 
 PACKLIB = compress gpu kim kokkos latte message mpiio mscg poems \
 	  python voronoi \