diff --git a/meson_options.txt b/meson_options.txt
index d5a0bd22..7d69d3d2 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -22,6 +22,12 @@ option(
   value: true,
   description: 'Whether to build and run unit tests'
 )
+option(
+  'installed_test_prefix',
+  type: 'string',
+  value: '',
+  description: 'Prefix for installed tests'
+)
 option(
   'fuse',
   type: 'combo',
diff --git a/tests/meson.build b/tests/meson.build
index 6ec405d1..f43c165c 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -1,5 +1,5 @@
-installed_testdir = get_option('prefix') / get_option('libexecdir') / 'installed-tests' / 'flatpak-builder'
-installed_tests_metadir = get_option('prefix') / get_option('datadir') / 'installed-tests' / 'flatpak-builder'
+installed_testdir = get_option('installed_test_prefix') / get_option('libexecdir') / 'installed-tests' / 'flatpak-builder'
+installed_tests_metadir = get_option('installed_test_prefix') / get_option('datadir') / 'installed-tests' / 'flatpak-builder'

 test_env = environment()
 test_env.set('FLATPAK_TESTS_DEBUG', '1')