diff --git a/php/ext/google/protobuf/php-upb.h b/php/ext/google/protobuf/php-upb.h
index ec913687504d..ae67e180362b 100644
--- a/php/ext/google/protobuf/php-upb.h
+++ b/php/ext/google/protobuf/php-upb.h
@@ -10178,7 +10178,7 @@ const upb_FileDef* upb_DefPool_FindFileByNameWithSize(const upb_DefPool* s,
 const upb_FieldDef* upb_DefPool_FindExtensionByMiniTable(
     const upb_DefPool* s, const upb_MiniTableExtension* ext);
 
-const upb_FieldDef* upb_DefPool_FindExtensionByName(const upb_DefPool* s,
+UPB_API const upb_FieldDef* upb_DefPool_FindExtensionByName(const upb_DefPool* s,
                                                     const char* sym);
 
 const upb_FieldDef* upb_DefPool_FindExtensionByNameWithSize(
@@ -10201,7 +10201,7 @@ UPB_API const upb_FileDef* upb_DefPool_AddFile(
     upb_DefPool* s, const UPB_DESC(FileDescriptorProto) * file_proto,
     upb_Status* status);
 
-const upb_ExtensionRegistry* upb_DefPool_ExtensionRegistry(
+UPB_API const upb_ExtensionRegistry* upb_DefPool_ExtensionRegistry(
     const upb_DefPool* s);
 
 const upb_FieldDef** upb_DefPool_GetAllExtensions(const upb_DefPool* s,
diff --git a/ruby/ext/google/protobuf_c/ruby-upb.h b/ruby/ext/google/protobuf_c/ruby-upb.h
index c4be0d71dd0f..9195fb3970c9 100755
--- a/ruby/ext/google/protobuf_c/ruby-upb.h
+++ b/ruby/ext/google/protobuf_c/ruby-upb.h
@@ -10682,7 +10682,7 @@ const upb_FileDef* upb_DefPool_FindFileByNameWithSize(const upb_DefPool* s,
 const upb_FieldDef* upb_DefPool_FindExtensionByMiniTable(
     const upb_DefPool* s, const upb_MiniTableExtension* ext);
 
-const upb_FieldDef* upb_DefPool_FindExtensionByName(const upb_DefPool* s,
+UPB_API const upb_FieldDef* upb_DefPool_FindExtensionByName(const upb_DefPool* s,
                                                     const char* sym);
 
 const upb_FieldDef* upb_DefPool_FindExtensionByNameWithSize(
@@ -10705,7 +10705,7 @@ UPB_API const upb_FileDef* upb_DefPool_AddFile(
     upb_DefPool* s, const UPB_DESC(FileDescriptorProto) * file_proto,
     upb_Status* status);
 
-const upb_ExtensionRegistry* upb_DefPool_ExtensionRegistry(
+UPB_API const upb_ExtensionRegistry* upb_DefPool_ExtensionRegistry(
     const upb_DefPool* s);
 
 const upb_FieldDef** upb_DefPool_GetAllExtensions(const upb_DefPool* s,