diff --git a/src/USER-FEP/fix_adapt_fep.cpp b/src/USER-FEP/fix_adapt_fep.cpp
index 6d2efa44dc..8f3f974817 100644
--- a/src/USER-FEP/fix_adapt_fep.cpp
+++ b/src/USER-FEP/fix_adapt_fep.cpp
@@ -581,5 +581,5 @@ void FixAdaptFEP::restore_settings()
   }
 
   if (anypair) force->pair->reinit();
-  if (chgflag && force->kspace) force->kspace->setup();
+  if (chgflag && force->kspace) force->kspace->qsum_qsq();
 }
diff --git a/src/fix_adapt.cpp b/src/fix_adapt.cpp
index 471485857e..bc6d4eeab8 100644
--- a/src/fix_adapt.cpp
+++ b/src/fix_adapt.cpp
@@ -552,5 +552,5 @@ void FixAdapt::restore_settings()
   }
 
   if (anypair) force->pair->reinit();
-  if (chgflag && force->kspace) force->kspace->setup();
+  if (chgflag && force->kspace) force->kspace->qsum_qsq();
 }