diff --git a/test-fixtures/Makefile.am b/test-fixtures/Makefile.am
index 62fd9d1f7..332c5ee25 100644
--- a/test-fixtures/Makefile.am
+++ b/test-fixtures/Makefile.am
@@ -19,6 +19,7 @@ libtest_fixtures_la_CPPFLAGS += \
 libtest_fixtures_la_CFLAGS = -g3 -O0 $(COGL_DEP_CFLAGS) $(COGL_EXTRA_CFLAGS)
 
 libtest_fixtures_la_SOURCES = \
+	test-unit.h \
 	test-utils.h \
 	test-utils.c