diff --git a/lib/IR/Instruction.cpp b/lib/IR/Instruction.cpp
index 3e7b0314473..bf375c976df 100644
--- a/lib/IR/Instruction.cpp
+++ b/lib/IR/Instruction.cpp
@@ -180,7 +180,7 @@ bool Instruction::hasAllowReciprocal() const {
 
 /// Convenience function for getting all the fast-math flags, which must be an
 /// operator which supports these flags. See LangRef.html for the meaning of
-/// these flats.
+/// these flags.
 FastMathFlags Instruction::getFastMathFlags() const {
   assert(isa<FPMathOperator>(this) && "getting fast-math flag on invalid op");
   return cast<FPMathOperator>(this)->getFastMathFlags();