diff --git a/test/shaping/data/in-house/Makefile.am b/test/shaping/data/in-house/Makefile.am
index 2f9551918..aab1652e8 100644
--- a/test/shaping/data/in-house/Makefile.am
+++ b/test/shaping/data/in-house/Makefile.am
@@ -9,54 +9,12 @@ lib:
 EXTRA_DIST = \
 	COPYING \
 	fonts \
-	$(TESTS) \
+	tests \
 	$(NULL)
 
 TEST_EXTENSIONS = .tests
 TESTS_LOG_COMPILER = $(srcdir)/../../run-tests.py $(top_builddir)/util/hb-shape$(EXEEXT)
 
-TESTS = \
-	tests/arabic-fallback-shaping.tests \
-	tests/arabic-feature-order.tests \
-	tests/arabic-like-joining.tests \
-	tests/arabic-mark-order.tests \
-	tests/arabic-stch.tests \
-	tests/automatic-fractions.tests \
-	tests/cluster.tests \
-	tests/color-fonts.tests \
-	tests/context-matching.tests \
-	tests/cursive-positioning.tests \
-	tests/default-ignorables.tests \
-	tests/emoji-flag-tags.tests \
-	tests/fallback-positioning.tests \
-	tests/fuzzed.tests \
-	tests/hangul-jamo.tests \
-	tests/hyphens.tests \
-	tests/indic-consonant-with-stacker.tests \
-	tests/indic-init.tests \
-	tests/indic-joiner-candrabindu.tests \
-	tests/indic-joiners.tests \
-	tests/indic-old-spec.tests \
-	tests/indic-pref-blocking.tests \
-	tests/indic-script-extensions.tests \
-	tests/indic-special-cases.tests \
-	tests/indic-syllable.tests \
-	tests/language-tags.tests \
-	tests/ligature-id.tests \
-	tests/mark-attachment.tests \
-	tests/mark-filtering-sets.tests \
-	tests/mongolian-variation-selector.tests \
-	tests/spaces.tests \
-	tests/simple.tests \
-	tests/tibetan-contractions-1.tests \
-	tests/tibetan-contractions-2.tests \
-	tests/tibetan-vowels.tests \
-	tests/use.tests \
-	tests/use-marchen.tests \
-	tests/use-syllable.tests \
-	tests/variations-rvrn.tests \
-	tests/vertical.tests \
-	tests/zero-width-marks.tests \
-	$(NULL)
+include Makefile.sources
 
 -include $(top_srcdir)/git.mk
diff --git a/test/shaping/data/in-house/Makefile.sources b/test/shaping/data/in-house/Makefile.sources
new file mode 100644
index 000000000..247133d4c
--- /dev/null
+++ b/test/shaping/data/in-house/Makefile.sources
@@ -0,0 +1,46 @@
+TESTS = \
+	tests/arabic-fallback-shaping.tests \
+	tests/arabic-feature-order.tests \
+	tests/arabic-like-joining.tests \
+	tests/arabic-mark-order.tests \
+	tests/arabic-stch.tests \
+	tests/automatic-fractions.tests \
+	tests/cluster.tests \
+	tests/color-fonts.tests \
+	tests/context-matching.tests \
+	tests/cursive-positioning.tests \
+	tests/default-ignorables.tests \
+	tests/emoji-flag-tags.tests \
+	tests/fallback-positioning.tests \
+	tests/fuzzed.tests \
+	tests/hangul-jamo.tests \
+	tests/hyphens.tests \
+	tests/indic-consonant-with-stacker.tests \
+	tests/indic-init.tests \
+	tests/indic-joiner-candrabindu.tests \
+	tests/indic-joiners.tests \
+	tests/indic-old-spec.tests \
+	tests/indic-pref-blocking.tests \
+	tests/indic-script-extensions.tests \
+	tests/indic-special-cases.tests \
+	tests/indic-syllable.tests \
+	tests/language-tags.tests \
+	tests/ligature-id.tests \
+	tests/mark-attachment.tests \
+	tests/mark-filtering-sets.tests \
+	tests/mongolian-variation-selector.tests \
+	tests/spaces.tests \
+	tests/simple.tests \
+	tests/tibetan-contractions-1.tests \
+	tests/tibetan-contractions-2.tests \
+	tests/tibetan-vowels.tests \
+	tests/use.tests \
+	tests/use-marchen.tests \
+	tests/use-syllable.tests \
+	tests/variations-rvrn.tests \
+	tests/vertical.tests \
+	tests/zero-width-marks.tests \
+	$(NULL)
+
+DISABLED_TESTS = \
+	$(NULL)