1 files changed, 1 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 431381bb1..016258796 100644
--- a/Makefile
+++ b/Makefile
@@ -653,6 +653,7 @@ SRCS += network_gui.c
 SRCS += network_server.c
 SRCS += network_udp.c
 SRCS += newgrf.c
+SRCS += newgrf_engine.c
 SRCS += news_gui.c
 SRCS += npf.c
 SRCS += oldloader.c