diff --git a/nczarr_test/Makefile.am b/nczarr_test/Makefile.am
index 6c237d778..1798455aa 100644
--- a/nczarr_test/Makefile.am
+++ b/nczarr_test/Makefile.am
@@ -129,7 +129,7 @@ EXTRA_DIST = CMakeLists.txt \
 run_ut_map.sh run_ut_mapapi.sh run_ut_misc.sh run_ut_chunk.sh run_ncgen4.sh \
 run_nccopyz.sh run_fillonlyz.sh run_chunkcases.sh test_nczarr.sh run_perf_chunks1.sh run_s3_cleanup.sh \
 run_purezarr.sh run_interop.sh run_misc.sh \
-run_filter.sh run_specific_filters.sh \
+run_filter.sh \
 run_newformat.sh run_nczarr_fill.sh run_quantize.sh \
 run_jsonconvention.sh run_nczfilter.sh run_unknown.sh \
 run_scalar.sh run_strings.sh run_nulls.sh
@@ -161,7 +161,7 @@ EXTRA_DIST += ref_power_901_constants_orig.zip ref_power_901_constants.cdl ref_q
 
 CLEANFILES = ut_*.txt ut*.cdl tmp*.nc tmp*.cdl tmp*.txt tmp*.dmp tmp*.zip tmp*.nc tmp*.dump tmp*.tmp tmp_ngc.c ref_zarr_test_data.cdl tst_*.nc.zip ref_quotes.zip ref_power_901_constants.zip
 
-BUILT_SOURCES = test_quantize.c test_filter_avail.c run_specific_filters.sh run_filterinstall.sh
+BUILT_SOURCES = test_quantize.c test_filter_avail.c run_specific_filters.sh run_filterinstall.sh run_unknown.sh
 test_quantize.c: $(top_srcdir)/nc_test4/tst_quantize.c
 	rm -f $@
 	echo "#define TESTNCZARR" > $@