diff --git a/guile/tests/meson.build b/guile/tests/meson.build
index a2793454..12426381 100644
--- a/guile/tests/meson.build
+++ b/guile/tests/meson.build
@@ -15,7 +15,7 @@
 ## Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 
-guile_load_path=':'.join([
+guile_load_path=':'.join([ # meson 0.56 has project_source_root
     join_paths(meson.source_root(), 'guile'),
     join_paths(meson.current_build_dir(), '..')])
 
diff --git a/lib/meson.build b/lib/meson.build
index 930dc0b8..a435bbf6 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -77,18 +77,18 @@ lib_mu=static_library(
   install: false)
 
 # some of the libme headers include xapian
-xapian_incs = xapian_dep.get_pkgconfig_variable('includedir')
 lib_mu_dep = declare_dependency(
   link_with: lib_mu,
+  dependencies: [ lib_mu_message_dep ],
   include_directories:
-    include_directories(['.', '..', xapian_incs]))
+    include_directories(['.', '..']))
 
 # test helpers
 lib_test_mu_common=static_library('mu-test-common', [
 				   'tests/test-mu-common.cc',
 				   'tests/test-mu-common.hh'],
 				  dependencies: [ glib_dep, thread_dep,
-                                                  config_h_dep])
+                                                  config_h_dep ])
 lib_test_mu_common_dep=declare_dependency(
   link_with: lib_test_mu_common,
   include_directories: include_directories(['tests']))