diff --git a/update_manager/evaluation_context.h b/update_manager/evaluation_context.h
index df5816a..0bdbaec 100644
--- a/update_manager/evaluation_context.h
+++ b/update_manager/evaluation_context.h
@@ -114,7 +114,7 @@
   // there's no cached variable, this method returns false.
   //
   // Right before the passed closure is called the EvaluationContext is
-  // reseted, removing all the non-const cached values.
+  // reset, removing all the non-const cached values.
   bool RunOnValueChangeOrTimeout(base::Closure callback);
 
   // Returns a textual representation of the evaluation context,
diff --git a/update_manager/policy.h b/update_manager/policy.h
index b60c4da..05bb2ad 100644
--- a/update_manager/policy.h
+++ b/update_manager/policy.h
@@ -118,7 +118,7 @@
 
   // Information pertaining to update scattering.
   //
-  // The currently knwon (persisted) scattering wallclock-based wait period and
+  // The currently known (persisted) scattering wallclock-based wait period and
   // update check threshold; zero if none.
   base::TimeDelta scatter_wait_period;
   int scatter_check_threshold;