diff --git a/test/scripts/hictk_dump_trans.sh b/test/scripts/hictk_dump_trans.sh
index 33842c3f..40706f12 100755
--- a/test/scripts/hictk_dump_trans.sh
+++ b/test/scripts/hictk_dump_trans.sh
@@ -102,7 +102,7 @@ if ! compare_files "$outdir/expected.pixels" "$outdir/out.hic9.pixels"; then
   status=1
 fi
 
-# Test --trans-only matrix
+# Test --trans-only matrix (sorted)
 cooler dump --join "$ref_cooler::/resolutions/100000" | awk -F '\t' '$1!=$4' | tee "$outdir/expected.pixels" > /dev/null
 "$hictk_bin" dump --join "$ref_cooler::/resolutions/100000" --trans-only | tee "$outdir/out.cooler.pixels" > /dev/null
 "$hictk_bin" dump --join --resolution 100000 "$ref_hic8" --trans-only | tee "$outdir/out.hic8.pixels" > /dev/null
@@ -120,6 +120,23 @@ if ! compare_files "$outdir/expected.pixels" "$outdir/out.hic9.pixels"; then
   status=1
 fi
 
+# Test --trans-only matrix (unsorted)
+"$hictk_bin" dump --join "$ref_cooler::/resolutions/100000" --trans-only --unsorted | sort -V | tee "$outdir/out.cooler.pixels" > /dev/null
+"$hictk_bin" dump --join --resolution 100000 "$ref_hic8" --trans-only --unsorted | sort -V | tee "$outdir/out.hic8.pixels" > /dev/null
+"$hictk_bin" dump --join --resolution 100000 "$ref_hic9" --trans-only --unsorted | sort -V | tee "$outdir/out.hic9.pixels" > /dev/null
+
+if ! compare_files "$outdir/expected.pixels" "$outdir/out.cooler.pixels"; then
+  status=1
+fi
+
+if ! compare_files "$outdir/expected.pixels" "$outdir/out.hic8.pixels"; then
+  status=1
+fi
+
+if ! compare_files "$outdir/expected.pixels" "$outdir/out.hic9.pixels"; then
+  status=1
+fi
+
 if [ "$status" -eq 0 ]; then
   printf '\n### PASS ###\n'
 else