diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 451ebd2..10137a1 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -1170,7 +1170,7 @@
 //
 // When we see foo we don't know if after the typedef we will get 'A' or '*A'
 // for example. If 'A', foo will have external linkage. If we have '*A',
-// foo will have no linkage. Since we can't know untill we get to the end
+// foo will have no linkage. Since we can't know until we get to the end
 // of the typedef, this function finds out if D might have non-external linkage.
 // Callers should verify at the end of the TU if it D has external linkage or
 // not.
@@ -10323,7 +10323,7 @@
       << getRedeclDiagFromTagKind(OldTag);
     Diag(Redecl->getLocation(), diag::note_previous_use);
 
-    // If there is a previous defintion, suggest a fix-it.
+    // If there is a previous definition, suggest a fix-it.
     if (Previous->getDefinition()) {
         Diag(NewTagLoc, diag::note_struct_class_suggestion)
           << getRedeclDiagFromTagKind(Redecl->getTagKind())