diff --git a/Utilities/IWYU/mapping.imp b/Utilities/IWYU/mapping.imp
index 3497b532ca..7fa85166e8 100644
--- a/Utilities/IWYU/mapping.imp
+++ b/Utilities/IWYU/mapping.imp
@@ -27,6 +27,7 @@
   { include: [ "<bits/std_abs.h>", private, "<stdlib.h>", public ] },
   { include: [ "<bits/stdint-intn.h>", private, "<stdint.h>", public ] },
   { include: [ "<bits/stdint-uintn.h>", private, "<stdint.h>", public ] },
+  { include: [ "<bits/string_view.tcc>", private, "<string_view>", public ] },
   { include: [ "<bits/time.h>", private, "<time.h>", public ] },
   { include: [ "<bits/types/clock_t.h>", private, "<time.h>", public ] },
   { include: [ "<bits/types/mbstate_t.h>", private, "<wchar.h>", public ] },
@@ -86,6 +87,7 @@
   { symbol: [ "std::__decay_and_strip<std::basic_string<char> &>::__type", private, "\"cmConfigure.h\"", public ] },
   { symbol: [ "std::__decay_and_strip<const std::basic_string<char> &>::__type", private, "\"cmConfigure.h\"", public ] },
   { symbol: [ "std::__decay_and_strip<cmFindPackageCommand::PathLabel &>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<cmGlobalNinjaGenerator::TargetAlias &>::__type", private, "\"cmConfigure.h\"", public ] },
   { symbol: [ "std::__decay_and_strip<__gnu_cxx::__normal_iterator<const cmCTestTestHandler::cmCTestTestProperties *, std::vector<cmCTestTestHandler::cmCTestTestProperties, std::allocator<cmCTestTestHandler::cmCTestTestProperties> > > &>::__type", private, "\"cmConfigure.h\"", public ] },
   { symbol: [ "std::__success_type<std::chrono::duration<double, std::ratio<1, 1> > >::type", private, "\"cmConfigure.h\"", public ] },
   { symbol: [ "std::__success_type<std::chrono::duration<long, std::ratio<1, 1000000000> > >::type", private, "\"cmConfigure.h\"", public ] },