diff --git a/convert.c b/convert.c
index da06e2f..126036e 100644
--- a/convert.c
+++ b/convert.c
@@ -9,6 +9,7 @@
 #include "sigchain.h"
 #include "pkt-line.h"
 #include "sub-process.h"
+#include "trace.h"
 #include "utf8.h"
 #include "ll-merge.h"
 #include "wrapper.h"