diff --git a/unittests/ADT/CMakeLists.txt b/unittests/ADT/CMakeLists.txt
index 485c0e8690d..ed008a34ae6 100644
--- a/unittests/ADT/CMakeLists.txt
+++ b/unittests/ADT/CMakeLists.txt
@@ -17,7 +17,7 @@ set(ADTSources
   FoldingSet.cpp
   FunctionRefTest.cpp
   HashingTest.cpp
-  ilistTest.cpp
+  ilistTestTemp.cpp
   IListBaseTest.cpp
   IListNodeBaseTest.cpp
   IListSentinelTest.cpp
diff --git a/unittests/ADT/ilistTest.cpp b/unittests/ADT/ilistTestTemp.cpp
similarity index 97%
rename from unittests/ADT/ilistTest.cpp
rename to unittests/ADT/ilistTestTemp.cpp
index 9086d3e009b..54caa82ae8d 100644
--- a/unittests/ADT/ilistTest.cpp
+++ b/unittests/ADT/ilistTestTemp.cpp
@@ -1,4 +1,4 @@
-//===- unittests/ADT/ilistTest.cpp - ilist unit tests ---------------------===//
+//===- unittests/ADT/ilistTestTemp.cpp - ilist unit tests -----------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,6 +7,9 @@
 //
 //===----------------------------------------------------------------------===//
 
+// FIXME: Rename this file to IListTest.cpp once incremental checkouts on bots
+// have found this file.
+
 #include "llvm/ADT/ilist.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/ilist_node.h"