diff --git a/src/tests/vnet/session/tcp_echo.c b/src/tests/vnet/session/tcp_echo.c
index a5ad35a..d48c5d9 100644
--- a/src/tests/vnet/session/tcp_echo.c
+++ b/src/tests/vnet/session/tcp_echo.c
@@ -1277,7 +1277,7 @@
 
   clib_time_init (&em->clib_time);
   init_error_string_table (em);
-  svm_fifo_segment_init (0x200000000ULL, 20);
+  svm_fifo_segment_main_init (0x200000000ULL, 20);
   unformat_init_command_line (a, argv);
 
   while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
diff --git a/src/tests/vnet/session/udp_echo.c b/src/tests/vnet/session/udp_echo.c
index 2838951..e425169 100644
--- a/src/tests/vnet/session/udp_echo.c
+++ b/src/tests/vnet/session/udp_echo.c
@@ -1071,7 +1071,7 @@
 
   clib_time_init (&utm->clib_time);
   init_error_string_table (utm);
-  svm_fifo_segment_init (0x200000000ULL, 20);
+  svm_fifo_segment_main_init (0x200000000ULL, 20);
   unformat_init_command_line (a, argv);
 
   while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)