diff --git a/src/fix.cpp b/src/fix.cpp
index e2c077fbc4..2ed2dc7485 100644
--- a/src/fix.cpp
+++ b/src/fix.cpp
@@ -58,6 +58,7 @@ Fix::Fix(LAMMPS *lmp, int narg, char **arg) : Pointers(lmp)
   time_depend = 0;
   create_attribute = 0;
   restart_pbc = 0;
+  cudable_comm = 0;
 
   scalar_flag = vector_flag = array_flag = 0;
   peratom_flag = local_flag = 0;
diff --git a/src/fix.h b/src/fix.h
index ca7008a8b2..b1ede8b67c 100644
--- a/src/fix.h
+++ b/src/fix.h
@@ -41,6 +41,7 @@ class Fix : protected Pointers {
                                  //      setting when a new atom is created
   int restart_pbc;               // 1 if fix moves atoms (except integrate)
                                  //      so write_restart must remap to PBC
+  int cudable_comm;              // 1 if fix has CUDA-enabled communication
 
   int scalar_flag;               // 0/1 if compute_scalar() function exists
   int vector_flag;               // 0/1 if compute_vector() function exists