diff --git a/cmake_targets/epc_build_oai/CMakeLists.template b/cmake_targets/epc_build_oai/CMakeLists.template
index c28b313727..091298619d 100644
--- a/cmake_targets/epc_build_oai/CMakeLists.template
+++ b/cmake_targets/epc_build_oai/CMakeLists.template
@@ -24,6 +24,7 @@ set (  ENABLE_VCD_FIFO False )
 set (  ENB_MODE False )
 set (  EPC_BUILD True )
 set (  EXMIMO_IOT False )
+set (  FLAG_GTPV1U_KERNEL_THREAD_SOCK_NO_WAIT True)
 set (  HARD_RT False )
 set (  JUMBO_FRAME False )
 set (  LARGE_SCALE False )