1 files changed, 4 insertions, 1 deletions
diff --git a/storage/mroonga/lib/mrn_database_manager.hpp b/storage/mroonga/lib/mrn_database_manager.hpp
index 76c76dab6d5..877b7ca889a 100644
--- a/storage/mroonga/lib/mrn_database_manager.hpp
+++ b/storage/mroonga/lib/mrn_database_manager.hpp
@@ -22,6 +22,8 @@
 #ifndef MRN_DATABASE_MANAGER_HPP_
 #define MRN_DATABASE_MANAGER_HPP_
 
+#include "mrn_database.hpp"
+
 #include <groonga.h>
 
 namespace mrn {
@@ -30,10 +32,11 @@ namespace mrn {
     DatabaseManager(grn_ctx *ctx, mysql_mutex_t *mutex);
     ~DatabaseManager(void);
     bool init(void);
-    int open(const char *path, grn_obj **db);
+    int open(const char *path, Database **db);
     void close(const char *path);
     bool drop(const char *path);
     int clear(void);
+    const char *error_message();
 
   private:
     grn_ctx *ctx_;