diff --git a/src/EXTRA-FIX/fix_ave_correlate_long.cpp b/src/EXTRA-FIX/fix_ave_correlate_long.cpp
index daa3fc8c8b..5dc3f01aad 100644
--- a/src/EXTRA-FIX/fix_ave_correlate_long.cpp
+++ b/src/EXTRA-FIX/fix_ave_correlate_long.cpp
@@ -401,11 +401,8 @@ void FixAveCorrelateLong::end_of_step()
   double scalar;
 
   // skip if not step which requires doing something
-  // error check if timestep was reset in an invalid manner
 
   bigint ntimestep = update->ntimestep;
-  if (ntimestep < nvalid_last || ntimestep > nvalid)
-    error->all(FLERR,"Invalid timestep reset for fix ave/correlate/long");
   if (ntimestep != nvalid) return;
   nvalid_last = nvalid;
 
diff --git a/src/fix_ave_atom.cpp b/src/fix_ave_atom.cpp
index 7c8b292f55..a5661b1f52 100644
--- a/src/fix_ave_atom.cpp
+++ b/src/fix_ave_atom.cpp
@@ -279,11 +279,8 @@ void FixAveAtom::end_of_step()
   int i,j,m,n;
 
   // skip if not step which requires doing something
-  // error check if timestep was reset in an invalid manner
 
   bigint ntimestep = update->ntimestep;
-  if (ntimestep < nvalid_last || ntimestep > nvalid)
-    error->all(FLERR,"Invalid timestep reset for fix ave/atom");
   if (ntimestep != nvalid) return;
   nvalid_last = nvalid;
 
diff --git a/src/fix_ave_chunk.cpp b/src/fix_ave_chunk.cpp
index 31b6a08f19..b6cb17b8c9 100644
--- a/src/fix_ave_chunk.cpp
+++ b/src/fix_ave_chunk.cpp
@@ -542,11 +542,8 @@ void FixAveChunk::end_of_step()
   int i,j,m,n,index;
 
   // skip if not step which requires doing something
-  // error check if timestep was reset in an invalid manner
 
   bigint ntimestep = update->ntimestep;
-  if (ntimestep < nvalid_last || ntimestep > nvalid)
-    error->all(FLERR,"Invalid timestep reset for fix ave/chunk");
   if (ntimestep != nvalid) return;
   nvalid_last = nvalid;
 
diff --git a/src/fix_ave_correlate.cpp b/src/fix_ave_correlate.cpp
index 4e50619268..486b991b77 100644
--- a/src/fix_ave_correlate.cpp
+++ b/src/fix_ave_correlate.cpp
@@ -391,11 +391,8 @@ void FixAveCorrelate::end_of_step()
   double scalar;
 
   // skip if not step which requires doing something
-  // error check if timestep was reset in an invalid manner
 
   bigint ntimestep = update->ntimestep;
-  if (ntimestep < nvalid_last || ntimestep > nvalid)
-    error->all(FLERR,"Invalid timestep reset for fix ave/correlate");
   if (ntimestep != nvalid) return;
   nvalid_last = nvalid;
 
diff --git a/src/fix_ave_histo.cpp b/src/fix_ave_histo.cpp
index 27c3e39a6c..5a7c6d4ccb 100644
--- a/src/fix_ave_histo.cpp
+++ b/src/fix_ave_histo.cpp
@@ -580,11 +580,8 @@ void FixAveHisto::end_of_step()
   int i,j,m;
 
   // skip if not step which requires doing something
-  // error check if timestep was reset in an invalid manner
 
   bigint ntimestep = update->ntimestep;
-  if (ntimestep < nvalid_last || ntimestep > nvalid)
-    error->all(FLERR,"Invalid timestep reset for fix ave/histo");
   if (ntimestep != nvalid) return;
   nvalid_last = nvalid;
 
diff --git a/src/fix_ave_histo_weight.cpp b/src/fix_ave_histo_weight.cpp
index 7866490840..16a64e093e 100644
--- a/src/fix_ave_histo_weight.cpp
+++ b/src/fix_ave_histo_weight.cpp
@@ -94,11 +94,8 @@ void FixAveHistoWeight::end_of_step()
   int i,j,m;
 
   // skip if not step which requires doing something
-  // error check if timestep was reset in an invalid manner
 
   bigint ntimestep = update->ntimestep;
-  if (ntimestep < nvalid_last || ntimestep > nvalid)
-    error->all(FLERR,"Invalid timestep reset for fix ave/histo");
   if (ntimestep != nvalid) return;
   nvalid_last = nvalid;
 
diff --git a/src/fix_ave_time.cpp b/src/fix_ave_time.cpp
index 8a9bce89d6..98b066ef0b 100644
--- a/src/fix_ave_time.cpp
+++ b/src/fix_ave_time.cpp
@@ -524,11 +524,8 @@ void FixAveTime::setup(int /*vflag*/)
 void FixAveTime::end_of_step()
 {
   // skip if not step which requires doing something
-  // error check if timestep was reset in an invalid manner
 
   bigint ntimestep = update->ntimestep;
-  if (ntimestep < nvalid_last || ntimestep > nvalid)
-    error->all(FLERR,"Invalid timestep reset for fix ave/time");
   if (ntimestep != nvalid) return;
   nvalid_last = nvalid;