diff --git a/src/USER-DPD/npair_half_bin_newton_ssa.h b/src/USER-DPD/npair_half_bin_newton_ssa.h
index a2e72d772b..13347b33b0 100644
--- a/src/USER-DPD/npair_half_bin_newton_ssa.h
+++ b/src/USER-DPD/npair_half_bin_newton_ssa.h
@@ -15,7 +15,7 @@
 
 NPairStyle(half/bin/newton/ssa,
            NPairHalfBinNewtonSSA,
-           NP_BIN | NP_NEWTON | NP_ORTHO | NP_SSA)
+           NP_HALF | NP_BIN | NP_NEWTON | NP_ORTHO | NP_SSA)
 
 #else