diff --git a/package/ibrdtn/ibrdtn.mk b/package/ibrdtn/ibrdtn.mk
index 3f805c4024..99ff92d442 100644
--- a/package/ibrdtn/ibrdtn.mk
+++ b/package/ibrdtn/ibrdtn.mk
@@ -10,6 +10,7 @@ IBRDTN_INSTALL_STAGING = YES
 IBRDTN_LICENSE = Apache-2.0
 IBRDTN_LICENSE_FILES = COPYING
 IBRDTN_DEPENDENCIES = ibrcommon host-pkgconf
+IBRDTN_CONF_ENV = CXXFLAGS="$(TARGET_CXXFLAGS) -std=c++11"
 
 ifeq ($(BR2_PACKAGE_ZLIB),y)
 IBRDTN_CONF_OPTS += --with-compression