diff --git a/tests/testloc.c b/tests/testloc.c
index 82bd8614b..64a156413 100644
--- a/tests/testloc.c
+++ b/tests/testloc.c
@@ -14,6 +14,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <hamlib/rig.h>
 #include <hamlib/rotator.h>