diff --git a/test/qcbor_decode_tests.c b/test/qcbor_decode_tests.c
index 0fe95d2..911117c 100644
--- a/test/qcbor_decode_tests.c
+++ b/test/qcbor_decode_tests.c
@@ -33,6 +33,7 @@
 #include "qcbor_decode_tests.h"
 #include "qcbor/qcbor_encode.h"
 #include "qcbor/qcbor_decode.h"
+#include "qcbor/qcbor_spiffy_decode.h"
 #include <string.h>
 #include <math.h> // for fabs()
 #include "not_well_formed_cbor.h"