diff --git a/meson_options.txt b/meson_options.txt
index 7e89619..76497db 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,3 +1,4 @@
+option('installed_test_prefix', type: 'string', description: 'Prefix for installed tests')
 option('systemdsystemunitdir',
        description: 'systemd unit directory',
        type: 'string',
diff --git a/tests/meson.build b/tests/meson.build
index b306a7f..7670e1b 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -2,8 +2,8 @@ envs = environment()
 envs.set ('top_builddir', meson.build_root())
 envs.set ('top_srcdir', meson.source_root())
 
-installed_test_bindir = libexecdir / 'installed-tests' / meson.project_name()
-installed_test_datadir = datadir / 'installed-tests' / meson.project_name()
+installed_test_bindir = get_option('installed_test_prefix') / 'libexec' / 'installed-tests' / meson.project_name()
+installed_test_datadir = get_option('installed_test_prefix') / 'share' / 'installed-tests' / meson.project_name()
 
 python3 = find_program('python3')
 unittest_inspector = find_program('unittest_inspector.py')
diff --git a/tests/integration-test.py b/tests/integration-test.py
index 22dc42c..0f92b76 100755
--- a/tests/integration-test.py
+++ b/tests/integration-test.py
@@ -67,7 +67,7 @@ class Tests(dbusmock.DBusTestCase):
             print('Testing binaries from JHBuild (%s)' % cls.daemon_path)
         else:
             cls.daemon_path = None
-            with open('/usr/lib/systemd/system/power-profiles-daemon.service') as f:
+            with open('/run/current-system/sw/lib/systemd/system/power-profiles-daemon.service') as f:
                 for line in f:
                     if line.startswith('ExecStart='):
                         cls.daemon_path = line.split('=', 1)[1].strip()