diff --git a/src/core/util/DatabaseProtobufAdapter.hpp b/src/core/util/DatabaseProtobufAdapter.hpp
index 6c8e5cf9..ca9bffd2 100644
--- a/src/core/util/DatabaseProtobufAdapter.hpp
+++ b/src/core/util/DatabaseProtobufAdapter.hpp
@@ -80,7 +80,7 @@ class DatabaseProtobufAdapter {
 		TypeBridge_uint32(const google::protobuf::FieldDescriptor *desc)
 			: TypeBridge(desc){};
 
-		virtual std::string sql_type() { return "INT"; };
+		virtual std::string sql_type() { return "INT UNSIGNED"; };
 		virtual int element_size() { return 4; };
 		virtual void copy_to(const google::protobuf::Message *msg, int i, void *);
 		virtual void bind(MYSQL_BIND *bind, const google::protobuf::Message *msg);
@@ -101,7 +101,7 @@ class DatabaseProtobufAdapter {
 		TypeBridge_uint64(const google::protobuf::FieldDescriptor *desc)
 			: TypeBridge(desc){};
 
-		virtual std::string sql_type() { return "BIGINT"; };
+		virtual std::string sql_type() { return "BIGINT UNSIGNED"; };
 		virtual int element_size() { return 8; };
 		virtual void copy_to(const google::protobuf::Message *msg, int i, void *);
 		virtual void bind(MYSQL_BIND *bind, const google::protobuf::Message *msg);