diff --git a/runtime/gc/allocator/rosalloc.h b/runtime/gc/allocator/rosalloc.h
index c4238c7..5b4ca80 100644
--- a/runtime/gc/allocator/rosalloc.h
+++ b/runtime/gc/allocator/rosalloc.h
@@ -54,10 +54,10 @@
 namespace gc {
 namespace allocator {
 
-// A Runs-of-slots memory allocator.
+// A runs-of-slots memory allocator.
 class RosAlloc {
  private:
-  // Rerepresents a run of free pages.
+  // Represents a run of free pages.
   class FreePageRun {
    public:
     byte magic_num_;  // The magic number used for debugging only.