3 files changed, 4 insertions, 2 deletions
diff --git a/src/vnet/l2/l2_learn.c b/src/vnet/l2/l2_learn.c
index fddab82426c..6ece1a3c7f2 100644
--- a/src/vnet/l2/l2_learn.c
+++ b/src/vnet/l2/l2_learn.c
@@ -29,6 +29,8 @@
 #include <vppinfra/error.h>
 #include <vppinfra/hash.h>
 
+l2learn_main_t l2learn_main;
+
 /**
  * @file
  * @brief Ethernet Bridge Learning.
diff --git a/src/vnet/l2/l2_learn.h b/src/vnet/l2/l2_learn.h
index 3aaf48e2544..c1071450852 100644
--- a/src/vnet/l2/l2_learn.h
+++ b/src/vnet/l2/l2_learn.h
@@ -48,7 +48,7 @@ typedef struct
 
 #define L2LEARN_DEFAULT_LIMIT (L2FIB_NUM_BUCKETS * 64)
 
-l2learn_main_t l2learn_main;
+extern l2learn_main_t l2learn_main;
 
 extern vlib_node_registration_t l2fib_mac_age_scanner_process_node;
 
diff --git a/src/vnet/l2/l2_output.h b/src/vnet/l2/l2_output.h
index 1a73fdf9790..3b6e480d1dc 100644
--- a/src/vnet/l2/l2_output.h
+++ b/src/vnet/l2/l2_output.h
@@ -75,7 +75,7 @@ typedef struct
   vnet_main_t *vnet_main;
 } l2output_main_t;
 
-l2output_main_t l2output_main;
+extern l2output_main_t l2output_main;
 
 extern vlib_node_registration_t l2output_node;