diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index fa9b7057c576c4d0a82fb20e85a726d12228a378..84daed1041c142867c013cad43165f4aed0a347b 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++
@@ -866,6 +866,7 @@ include/grpc/impl/codegen/byte_buffer_reader.h \
 include/grpc/impl/codegen/compression_types.h \
 include/grpc/impl/codegen/connectivity_state.h \
 include/grpc/impl/codegen/exec_ctx_fwd.h \
+include/grpc/impl/codegen/gpr_slice.h \
 include/grpc/impl/codegen/gpr_types.h \
 include/grpc/impl/codegen/grpc_types.h \
 include/grpc/impl/codegen/port_platform.h \
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index bca5652a463fcee4d18fc11e01a149d3f6a85ccc..37e4ad3f373d5d76b1c4b9e19cf1cfc7f1065810 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -867,6 +867,7 @@ include/grpc/impl/codegen/byte_buffer_reader.h \
 include/grpc/impl/codegen/compression_types.h \
 include/grpc/impl/codegen/connectivity_state.h \
 include/grpc/impl/codegen/exec_ctx_fwd.h \
+include/grpc/impl/codegen/gpr_slice.h \
 include/grpc/impl/codegen/gpr_types.h \
 include/grpc/impl/codegen/grpc_types.h \
 include/grpc/impl/codegen/port_platform.h \
diff --git a/tools/doxygen/Doxyfile.core b/tools/doxygen/Doxyfile.core
index ccbfe3a4e66ccfffcacf1062f24989e1016e4574..da990379ce4919e50353c0376d7ff88489d1f636 100644
--- a/tools/doxygen/Doxyfile.core
+++ b/tools/doxygen/Doxyfile.core
@@ -807,6 +807,8 @@ include/grpc/impl/codegen/byte_buffer_reader.h \
 include/grpc/impl/codegen/compression_types.h \
 include/grpc/impl/codegen/connectivity_state.h \
 include/grpc/impl/codegen/exec_ctx_fwd.h \
+include/grpc/impl/codegen/gpr_slice.h \
+include/grpc/impl/codegen/gpr_slice.h \
 include/grpc/impl/codegen/gpr_types.h \
 include/grpc/impl/codegen/gpr_types.h \
 include/grpc/impl/codegen/grpc_types.h \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index fc8fac32f0dc2b7338959705d6de3eb71808f59a..4591aa50e3c9e135f8b9d80abdb0104248d7fa7a 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -807,6 +807,8 @@ include/grpc/impl/codegen/byte_buffer_reader.h \
 include/grpc/impl/codegen/compression_types.h \
 include/grpc/impl/codegen/connectivity_state.h \
 include/grpc/impl/codegen/exec_ctx_fwd.h \
+include/grpc/impl/codegen/gpr_slice.h \
+include/grpc/impl/codegen/gpr_slice.h \
 include/grpc/impl/codegen/gpr_types.h \
 include/grpc/impl/codegen/gpr_types.h \
 include/grpc/impl/codegen/grpc_types.h \