diff --git a/src/SPIN/atom_vec_spin.cpp b/src/SPIN/atom_vec_spin.cpp
index 645f86dde2..4f3d0a3aab 100644
--- a/src/SPIN/atom_vec_spin.cpp
+++ b/src/SPIN/atom_vec_spin.cpp
@@ -82,7 +82,6 @@ void AtomVecSpin::grow_pointers()
 
 void AtomVecSpin::force_clear(int n, size_t nbytes)
 {
-  memset(&f[n][0],0,3*nbytes);
   memset(&fm[n][0],0,3*nbytes);
   memset(&fm_long[n][0],0,3*nbytes);
 }