diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index 023e3a6..8ac33a4 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -1099,7 +1099,7 @@
   }
 
   // Insert `this` between `predecessor` and `successor. This method
-  // preserves the indicies, and will update the first edge found between
+  // preserves the indices, and will update the first edge found between
   // `predecessor` and `successor`.
   void InsertBetween(HBasicBlock* predecessor, HBasicBlock* successor) {
     size_t predecessor_index = successor->GetPredecessorIndexOf(predecessor);