diff --git a/chunkymap-regen.py b/chunkymap-regen.py
index 6630321..f2aa4e6 100644
--- a/chunkymap-regen.py
+++ b/chunkymap-regen.py
@@ -516,11 +516,12 @@ class MTChunks:
         if self.os_name=="windows":
             self.minetestmapper_fast_sqlite_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "minetestmapper-numpy.py")
         
-        self.minetestmapper_custom_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "minetestmapper.py")
-        self.mt_chunkymap_path = os.path.join(self.mt_util_path, "chunkymap")
-        try_path = os.path.join(self.mt_chunkymap_path, "minetestmapper.py")
-        if os.path.isfile(try_path):
-            self.minetestmapper_custom_path = try_path
+        #self.minetestmapper_custom_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "minetestmapper.py")
+        self.minetestmapper_custom_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "minetestmapper-expertmm.py")
+        #self.mt_chunkymap_path = os.path.join(self.mt_util_path, "chunkymap")
+        #try_path = os.path.join(self.mt_chunkymap_path, "minetestmapper.py")
+        #if os.path.isfile(try_path):
+        #    self.minetestmapper_custom_path = try_path
         self.minetestmapper_py_path = self.minetestmapper_fast_sqlite_path
         if (self.backend_string!="sqlite3"):
             self.minetestmapper_py_path = self.minetestmapper_custom_path
diff --git a/install-chunkymap-on-ubuntu.sh b/install-chunkymap-on-ubuntu.sh
index 7c3629e..1f30599 100644
--- a/install-chunkymap-on-ubuntu.sh
+++ b/install-chunkymap-on-ubuntu.sh
@@ -44,10 +44,10 @@ cp -f "$CHUNKYMAP_INSTALLER_PATH/unused/chunkymap-cronjob" "$CHUNKYMAP_DEST/unus
 cp -f "$CHUNKYMAP_INSTALLER_PATH/unused/chunkymap-players-cronjob" "$CHUNKYMAP_DEST/unused/"
 cp -f "$CHUNKYMAP_INSTALLER_PATH/unused/set-minutely-players-crontab-job.sh" "$CHUNKYMAP_DEST/unused/"
 cp -f "$CHUNKYMAP_INSTALLER_PATH/unused/set-minutely-crontab-job.sh" "$CHUNKYMAP_DEST/unused/"
-if [ ! -d "$CHUNKYMAP_DEST/chunkymap" ]; then
-  mkdir "$CHUNKYMAP_DEST/chunkymap"
-fi
-cp -f "$CHUNKYMAP_INSTALLER_PATH/minetestmapper.py" "$CHUNKYMAP_DEST/chunkymap/"
+#if [ ! -d "$CHUNKYMAP_DEST/chunkymap" ]; then
+#  mkdir "$CHUNKYMAP_DEST/chunkymap"
+#fi
+cp -f "$CHUNKYMAP_INSTALLER_PATH/minetestmapper-expertmm.py" "$CHUNKYMAP_DEST/"
 cp --no-clobber $CHUNKYMAP_INSTALLER_PATH/chunkymap-signals* "$CHUNKYMAP_DEST/"
 cd "$CHUNKYMAP_INSTALLER_PATH"
 python replace-with-current-user.py  # the py file only manipulates the minetest/util directory
diff --git a/minetestmapper.py b/minetestmapper-expertmm.py
similarity index 100%
rename from minetestmapper.py
rename to minetestmapper-expertmm.py