diff --git a/undocumented-keys.txt b/undocumented-keys.txt
index 165d31ffe0f166d25997a24de61f2a917c69bf46..0d4ff25f4b829a9694306259603d25779503d129 100644
--- a/undocumented-keys.txt
+++ b/undocumented-keys.txt
@@ -1,5 +1,4 @@
 [fluid_name].trac0
-amr.restart
 bc.[region_name].[solid_name].density
 bc.[region_name].[solid_name].density.constant
 bc.[region_name].[solid_name].species.[species_name]
@@ -50,7 +49,6 @@ mfix.deposition.filter
 mfix.deposition.filter.constant
 mfix.deposition.filter.variable
 mfix.deposition.filter.variable.min_eps
-mfix.dual_grid
 mfix.geom_chk_ccse_regtest
 mfix.geometry_filename
 mfix.monitors.[monitor_name].count