diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index f076846..4cf5bef 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -960,6 +960,8 @@
 src/core/lib/iomgr/iomgr_posix.h \
 src/core/lib/iomgr/iomgr_uv.c \
 src/core/lib/iomgr/iomgr_windows.c \
+src/core/lib/iomgr/is_epollexclusive_available.c \
+src/core/lib/iomgr/is_epollexclusive_available.h \
 src/core/lib/iomgr/load_file.c \
 src/core/lib/iomgr/load_file.h \
 src/core/lib/iomgr/lockfree_event.c \
@@ -1002,6 +1004,7 @@
 src/core/lib/iomgr/socket_utils_windows.c \
 src/core/lib/iomgr/socket_windows.c \
 src/core/lib/iomgr/socket_windows.h \
+src/core/lib/iomgr/sys_epoll_wrapper.h \
 src/core/lib/iomgr/tcp_client.h \
 src/core/lib/iomgr/tcp_client_posix.c \
 src/core/lib/iomgr/tcp_client_posix.h \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 02af1d6..d43e4bc 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -1095,6 +1095,8 @@
 src/core/lib/iomgr/iomgr_posix.h \
 src/core/lib/iomgr/iomgr_uv.c \
 src/core/lib/iomgr/iomgr_windows.c \
+src/core/lib/iomgr/is_epollexclusive_available.c \
+src/core/lib/iomgr/is_epollexclusive_available.h \
 src/core/lib/iomgr/load_file.c \
 src/core/lib/iomgr/load_file.h \
 src/core/lib/iomgr/lockfree_event.c \
@@ -1137,6 +1139,7 @@
 src/core/lib/iomgr/socket_utils_windows.c \
 src/core/lib/iomgr/socket_windows.c \
 src/core/lib/iomgr/socket_windows.h \
+src/core/lib/iomgr/sys_epoll_wrapper.h \
 src/core/lib/iomgr/tcp_client.h \
 src/core/lib/iomgr/tcp_client_posix.c \
 src/core/lib/iomgr/tcp_client_posix.h \