-# The check CFLAGS are a superset of the libsigrokdecode CFLAGS.
-AM_CFLAGS = $(SRD_EXTRA_CFLAGS) $(SRD_WFLAGS) $(CHECK_CFLAGS)
+# The tests CFLAGS are a superset of the libsigrokdecode CFLAGS.
+AM_CFLAGS = $(SRD_EXTRA_CFLAGS) $(SRD_WFLAGS) $(TESTS_CFLAGS)