diff --git a/tests/libtest/Makefile.am b/tests/libtest/Makefile.am
index b2f980c339..924fba1564 100644
--- a/tests/libtest/Makefile.am
+++ b/tests/libtest/Makefile.am
@@ -96,7 +96,7 @@ libstubgss_la_DEPENDENCIES =
 endif
 
 if USE_TEST_BUNDLES
-libtest_bundle.c: $(top_srcdir)/tests/mk-bundle.pl $(FIRSTFILES) lib1521.c
+libtest_bundle.c: $(top_srcdir)/tests/mk-bundle.pl Makefile.inc $(FIRSTFILES) lib1521.c
 	@PERL@ $(top_srcdir)/tests/mk-bundle.pl $(srcdir) > libtest_bundle.c
 
 noinst_PROGRAMS = libtests
diff --git a/tests/unit/Makefile.am b/tests/unit/Makefile.am
index e9360447b4..0e7605e7ee 100644
--- a/tests/unit/Makefile.am
+++ b/tests/unit/Makefile.am
@@ -60,7 +60,7 @@ endif
 
 if BUILD_UNITTESTS
 if USE_TEST_BUNDLES
-unit_bundle.c: $(top_srcdir)/tests/mk-bundle.pl
+unit_bundle.c: $(top_srcdir)/tests/mk-bundle.pl Makefile.inc
 	@PERL@ $(top_srcdir)/tests/mk-bundle.pl $(srcdir) > unit_bundle.c
 
 noinst_PROGRAMS = units