diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 0f7e8cd..bcf91e7 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -1031,6 +1031,7 @@
 src/core/lib/support/atomic_with_atm.h \
 src/core/lib/support/atomic_with_std.h \
 src/core/lib/support/env.h \
+src/core/lib/support/manual_constructor.h \
 src/core/lib/support/memory.h \
 src/core/lib/support/mpscq.h \
 src/core/lib/support/murmur_hash.h \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index d465403..e6d2425 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -1320,6 +1320,7 @@
 src/core/lib/support/log_linux.cc \
 src/core/lib/support/log_posix.cc \
 src/core/lib/support/log_windows.cc \
+src/core/lib/support/manual_constructor.h \
 src/core/lib/support/memory.h \
 src/core/lib/support/mpscq.cc \
 src/core/lib/support/mpscq.h \