diff --git a/src/fix_addforce.cpp b/src/fix_addforce.cpp
index fe15268376..4f39d00d14 100644
--- a/src/fix_addforce.cpp
+++ b/src/fix_addforce.cpp
@@ -38,6 +38,7 @@ FixAddForce::FixAddForce(LAMMPS *lmp, int narg, char **arg) :
 {
   if (narg < 6) error->all(FLERR,"Illegal fix addforce command");
 
+  dynamic_group_allow = 1;
   scalar_flag = 1;
   vector_flag = 1;
   size_vector = 3;
diff --git a/src/fix_aveforce.cpp b/src/fix_aveforce.cpp
index 7cd44412eb..9b9380130e 100644
--- a/src/fix_aveforce.cpp
+++ b/src/fix_aveforce.cpp
@@ -38,6 +38,7 @@ FixAveForce::FixAveForce(LAMMPS *lmp, int narg, char **arg) :
 {
   if (narg < 6) error->all(FLERR,"Illegal fix aveforce command");
 
+  dynamic_group_allow = 1;
   vector_flag = 1;
   size_vector = 3;
   global_freq = 1;
diff --git a/src/fix_nh.cpp b/src/fix_nh.cpp
index 139b9ae105..f41af188cb 100644
--- a/src/fix_nh.cpp
+++ b/src/fix_nh.cpp
@@ -54,6 +54,7 @@ FixNH::FixNH(LAMMPS *lmp, int narg, char **arg) : Fix(lmp, narg, arg)
   if (narg < 4) error->all(FLERR,"Illegal fix nvt/npt/nph command");
 
   restart_global = 1;
+  dynamic_group_allow = 1;
   time_integrate = 1;
   scalar_flag = 1;
   vector_flag = 1;
diff --git a/src/fix_nve.cpp b/src/fix_nve.cpp
index d1431a4e8d..8914a18f4c 100644
--- a/src/fix_nve.cpp
+++ b/src/fix_nve.cpp
@@ -31,6 +31,7 @@ FixNVE::FixNVE(LAMMPS *lmp, int narg, char **arg) :
   if (strcmp(style,"nve/sphere") != 0 && narg < 3)
     error->all(FLERR,"Illegal fix nve command");
 
+  dynamic_group_allow = 1;
   time_integrate = 1;
 }
 
diff --git a/src/fix_setforce.cpp b/src/fix_setforce.cpp
index fd21ada90f..7c9ef0a5c7 100644
--- a/src/fix_setforce.cpp
+++ b/src/fix_setforce.cpp
@@ -38,6 +38,7 @@ FixSetForce::FixSetForce(LAMMPS *lmp, int narg, char **arg) :
 {
   if (narg < 6) error->all(FLERR,"Illegal fix setforce command");
 
+  dynamic_group_allow = 1;
   vector_flag = 1;
   size_vector = 3;
   global_freq = 1;