diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 8c2558af787..12983a52e20 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -361,7 +361,7 @@ void LiveIntervals::handlePhysicalRegisterDef(MachineBasicBlock* mbb,
 
     // If it is not dead on definition, it must be killed by a
     // subsequent instruction. Hence its interval is:
-    // [defSlot(def), useSlot(def)+1)
+    // [defSlot(def), useSlot(kill)+1)
     do {
         ++mi;
         baseIndex += InstrSlots::NUM;