diff --git a/build.yaml b/build.yaml
index d70bbe39ca8..7c60b537c4b 100644
--- a/build.yaml
+++ b/build.yaml
@@ -911,7 +911,7 @@ filegroups:
   - third_party/nanopb/pb_common.c
   - third_party/nanopb/pb_decode.c
   - third_party/nanopb/pb_encode.c
-  filegroups:
+  uses:
   - nanopb_headers
 - name: nanopb_headers
   headers:
diff --git a/grpc.gemspec b/grpc.gemspec
index f04a14167b1..9957f050d0c 100644
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -369,6 +369,10 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h )
   s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h )
   s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h )
+  s.files += %w( third_party/nanopb/pb.h )
+  s.files += %w( third_party/nanopb/pb_common.h )
+  s.files += %w( third_party/nanopb/pb_decode.h )
+  s.files += %w( third_party/nanopb/pb_encode.h )
   s.files += %w( src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h )
   s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h )
   s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h )
diff --git a/package.xml b/package.xml
index d5bd4d062a4..9e230436124 100644
--- a/package.xml
+++ b/package.xml
@@ -379,6 +379,10 @@
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h" role="src" />
+    <file baseinstalldir="/" name="third_party/nanopb/pb.h" role="src" />
+    <file baseinstalldir="/" name="third_party/nanopb/pb_common.h" role="src" />
+    <file baseinstalldir="/" name="third_party/nanopb/pb_decode.h" role="src" />
+    <file baseinstalldir="/" name="third_party/nanopb/pb_encode.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" role="src" />
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 4901fc92182..071896d8552 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -1424,9 +1424,13 @@ src/core/tsi/transport_security_adapter.h \
 src/core/tsi/transport_security_grpc.c \
 src/core/tsi/transport_security_grpc.h \
 src/core/tsi/transport_security_interface.h \
+third_party/nanopb/pb.h \
 third_party/nanopb/pb_common.c \
+third_party/nanopb/pb_common.h \
 third_party/nanopb/pb_decode.c \
-third_party/nanopb/pb_encode.c
+third_party/nanopb/pb_decode.h \
+third_party/nanopb/pb_encode.c \
+third_party/nanopb/pb_encode.h
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses