diff --git a/llvm/include/llvm/ADT/EquivalenceClasses.h b/llvm/include/llvm/ADT/EquivalenceClasses.h
index 90d8948734729..5e8c2fad309a5 100644
--- a/llvm/include/llvm/ADT/EquivalenceClasses.h
+++ b/llvm/include/llvm/ADT/EquivalenceClasses.h
@@ -128,7 +128,7 @@ template <class ElemTy> class EquivalenceClasses {
   /// ECValues, it just keeps the key as part of the value.
   DenseMap<ElemTy, ECValue *> TheMapping;
 
-  /// List of all members, used to provide a determinstic iteration order.
+  /// List of all members, used to provide a deterministic iteration order.
   SmallVector<const ECValue *> Members;
 
   mutable BumpPtrAllocator ECValueAllocator;