diff --git a/Makefile b/Makefile
index e11e229..386875e 100644
--- a/Makefile
+++ b/Makefile
@@ -396,7 +396,12 @@ OBJS += src/rules_process.o
 OBJS += src/scale_movie_fix.o
 OBJS += src/scale_movie_fix_hack.o
 OBJS += src/screenshots_in_subdir.o
+
+# Only include in: MOD_DTA MOD_RUBICON MOD_TO MOD_TI
+ifneq ($(call ifdef_any_of,MOD_DTA MOD_RUBICON MOD_TO MOD_TI),)
 OBJS += src/scriptaction4.o
+endif
+
 OBJS += src/skip_score.o
 OBJS += src/veterancy_crate_check_trainable.o
 OBJS += src/video_mode_hacks.o