Fix build
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 89e99c3..cdda52f 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -321,6 +321,7 @@
'src/core/lib/json/json_reader.h',
'src/core/lib/json/json_writer.h',
'src/core/lib/slice/percent_encoding.h',
+ 'src/core/lib/slice/slice_internal.h',
'src/core/lib/slice/slice_string_helpers.h',
'src/core/lib/surface/api_trace.h',
'src/core/lib/surface/call.h',
@@ -728,6 +729,7 @@
'src/core/lib/json/json_reader.h',
'src/core/lib/json/json_writer.h',
'src/core/lib/slice/percent_encoding.h',
+ 'src/core/lib/slice/slice_internal.h',
'src/core/lib/slice/slice_string_helpers.h',
'src/core/lib/surface/api_trace.h',
'src/core/lib/surface/call.h',