diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index 551ba46b3b85f626d2945109c394fc9629cfbeeb..4d2c429957774c814689e0733b08fb1c6a10951d 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++
@@ -779,6 +779,7 @@ doc/fail_fast.md \
 doc/g_stands_for.md \
 doc/health-checking.md \
 doc/http-grpc-status-mapping.md \
+doc/internationalization.md \
 doc/interop-test-descriptions.md \
 doc/load-balancing.md \
 doc/naming.md \
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 0d7ddfc6d6767a70bc614d3245cff3bf12667f93..498f572dc625de70853b6299d6af27a939c8f686 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -779,6 +779,7 @@ doc/fail_fast.md \
 doc/g_stands_for.md \
 doc/health-checking.md \
 doc/http-grpc-status-mapping.md \
+doc/internationalization.md \
 doc/interop-test-descriptions.md \
 doc/load-balancing.md \
 doc/naming.md \
diff --git a/tools/doxygen/Doxyfile.core b/tools/doxygen/Doxyfile.core
index 896ee0213b3447abc22377055f53bb8f9fd5ffaf..fa41e56b43a0297226dbe43bf2553343291e98b9 100644
--- a/tools/doxygen/Doxyfile.core
+++ b/tools/doxygen/Doxyfile.core
@@ -778,6 +778,7 @@ doc/fail_fast.md \
 doc/g_stands_for.md \
 doc/health-checking.md \
 doc/http-grpc-status-mapping.md \
+doc/internationalization.md \
 doc/interop-test-descriptions.md \
 doc/load-balancing.md \
 doc/naming.md \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 04fd7bee222632e69f09b185d58efc8a314775b2..bffa050041e85554a2149de5b9619df2311f8d0a 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -778,6 +778,7 @@ doc/fail_fast.md \
 doc/g_stands_for.md \
 doc/health-checking.md \
 doc/http-grpc-status-mapping.md \
+doc/internationalization.md \
 doc/interop-test-descriptions.md \
 doc/load-balancing.md \
 doc/naming.md \