diff --git a/src/main.c b/src/main.c
index b66bc63..b759910 100644
--- a/src/main.c
+++ b/src/main.c
@@ -92,6 +92,7 @@ frame(void) {
 
 static void
 cleanup(void) {
+   sdtx_shutdown();
    sg_shutdown();
 }