1 files changed, 1 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 8dd99a1db..17db2409d 100644
--- a/Makefile
+++ b/Makefile
@@ -600,6 +600,7 @@ C_SOURCES += order_gui.c
 C_SOURCES += pathfind.c
 C_SOURCES += player_gui.c
 C_SOURCES += players.c
+C_SOURCES += pool.c
 C_SOURCES += queue.c
 C_SOURCES += rail_cmd.c
 C_SOURCES += rail_gui.c