diff --git a/src/test/test-af-list.c b/src/test/test-af-list.c
index e5ca54c8e7..bbaf18b08a 100644
--- a/src/test/test-af-list.c
+++ b/src/test/test-af-list.c
@@ -24,7 +24,7 @@
 #include "string-util.h"
 #include "util.h"
 
-_unused_ \
+_unused_
 static const struct af_name* lookup_af(register const char *str, register GPERF_LEN_TYPE len);
 
 #include "af-from-name.h"