diff --git a/clang/lib/Frontend/ModuleDependencyCollector.cpp b/clang/lib/Frontend/ModuleDependencyCollector.cpp
index 9b34d42..ede12aa 100644
--- a/clang/lib/Frontend/ModuleDependencyCollector.cpp
+++ b/clang/lib/Frontend/ModuleDependencyCollector.cpp
@@ -248,7 +248,7 @@
   // Always map a canonical src path to its real path into the YAML, by doing
   // this we map different virtual src paths to the same entry in the VFS
   // overlay, which is a way to emulate symlink inside the VFS; this is also
-  // needed for correctness, not doing that can lead to module redifinition
+  // needed for correctness, not doing that can lead to module redefinition
   // errors.
   addFileMapping(VirtualPath, CacheDst);
   return std::error_code();