diff --git a/debian/config/config b/debian/config/config
index d8f9ad845..a79e52711 100644
--- a/debian/config/config
+++ b/debian/config/config
@@ -2622,6 +2622,11 @@ CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_AUDIT=y
 CONFIG_AUDITSYSCALL=y
+## choice: RCU Implementation
+CONFIG_CLASSIC_RCU=m
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+## end choice
 # CONFIG_RCU_TRACE is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=17