diff --git a/nmpfilter/README.md b/nmpfilter/README.md
index 32e01966..05fd3d99 100644
--- a/nmpfilter/README.md
+++ b/nmpfilter/README.md
@@ -1,10 +1,10 @@
-# nmpfilter
+# nmpbyregion
 
 **Purpose:**<br>
 Splits *tm-master.nmp* into smaller .nmp files filtered by region.
 
 **usage:**<br>
-`nmpfilter HwyDataDir MasterNMP OutputDir`, where
+`nmpbyregion HwyDataDir MasterNMP OutputDir`, where
 * `HwyDataDir` is the path of the *hwy_data* directory in the HighwayData repository, or equivalent
 * `MasterNMP` is the path of *tm-master.nmp*
 * `OutputDir` is the directory in which to write the resulting .nmp files. Trailing slash required.
diff --git a/nmpfilter/nmpfilter.cpp b/nmpfilter/nmpbyregion.cpp
similarity index 96%
rename from nmpfilter/nmpfilter.cpp
rename to nmpfilter/nmpbyregion.cpp
index 89d26ccc..64481b55 100644
--- a/nmpfilter/nmpfilter.cpp
+++ b/nmpfilter/nmpbyregion.cpp
@@ -60,7 +60,7 @@ void filter(vector<string> &RgList, char *MasterNMP, char *OutputDir)
 
 int main(int argc, char *argv[])
 {	if (argc != 4)
-	{	cout << "usage: nmpfilter HwyDataDir MasterNMP OutputDir\n";
+	{	cout << "usage: nmpbyregion HwyDataDir MasterNMP OutputDir\n";
 		return 0;
 	}
 	vector<string> RgList;
diff --git a/siteupdate/python-teresco/localupdate.sh b/siteupdate/python-teresco/localupdate.sh
index a0e77ca4..8dcd9c88 100644
--- a/siteupdate/python-teresco/localupdate.sh
+++ b/siteupdate/python-teresco/localupdate.sh
@@ -47,15 +47,15 @@ echo "$0: launching siteupdate.py"
 PYTHONIOENCODING='utf-8' ./siteupdate.py -d TravelMapping-$datestr $graphflag -l $datestr/$logdir -c $datestr/$statdir -g $datestr/$graphdir -n $datestr/$nmpmdir | tee $datestr/$logdir/siteupdate.log 2>&1 || exit 1
 date
 
-if [ -x ../../nmpfilter/nmpfilter ]; then
-    echo "$0: running nmpfilter"
-    ../../nmpfilter/nmpfilter $tmbase/HighwayData/hwy_data  $datestr/$logdir/tm-master.nmp $datestr/$logdir/nmpbyregion/
-    echo "$0: creating zip archive of all nmp files created by nmpfilter"
+if [ -x ../../nmpfilter/nmpbyregion ]; then
+    echo "$0: running nmpbyregion"
+    ../../nmpfilter/nmpbyregion $tmbase/HighwayData/hwy_data  $datestr/$logdir/tm-master.nmp $datestr/$logdir/nmpbyregion/
+    echo "$0: creating zip archive of all nmp files created by nmpbyregion"
     cd $datestr/$logdir/nmpbyregion
     zip -q nmpbyregion.zip *.nmp
     cd -
 else
-    echo "$0: SKIPPING nmpfilter (../../nmpfilter/nmpfilter not executable)"
+    echo "$0: SKIPPING nmpbyregion (../../nmpfilter/nmpbyregion not executable)"
 fi
 
 if [ "$install" == "0" ]; then