1 files changed, 3 insertions, 0 deletions
diff --git a/sub/sd_ass.c b/sub/sd_ass.c
index 2b0cf13127..40e5093d8e 100644
--- a/sub/sd_ass.c
+++ b/sub/sd_ass.c
@@ -65,6 +65,9 @@ static void fill_plaintext(struct sd *sd, double pts);
 static const struct sd_filter_functions *const filters[] = {
     // Note: list order defines filter order.
     &sd_filter_sdh,
+#if HAVE_POSIX
+    &sd_filter_regex,
+#endif
     NULL,
 };