diff --git a/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp b/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp
index efbde71354..20617d959d 100644
--- a/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp
+++ b/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp
@@ -33,6 +33,7 @@ PairCGCMMCoulLong::PairCGCMMCoulLong(LAMMPS *lmp) : PairCMMCommon(lmp)
 {
   respa_enable = 0;
   single_enable = 0;
+  ewaldflag = pppmflag = 1;
 }
 
 /* ---------------------------------------------------------------------- */
diff --git a/src/USER-CG-CMM/pair_lj_sdk_coul_long.cpp b/src/USER-CG-CMM/pair_lj_sdk_coul_long.cpp
index 11e7260768..0f2466ac02 100644
--- a/src/USER-CG-CMM/pair_lj_sdk_coul_long.cpp
+++ b/src/USER-CG-CMM/pair_lj_sdk_coul_long.cpp
@@ -52,6 +52,7 @@ using namespace LJSDKParms;
 
 PairLJSDKCoulLong::PairLJSDKCoulLong(LAMMPS *lmp) : Pair(lmp)
 {
+  ewaldflag = pppmflag = 1;
   respa_enable = 0;
   ftable = NULL;
 }