diff --git a/src/plugins/mesonprojectmanager/mesonprojectmanager.qbs b/src/plugins/mesonprojectmanager/mesonprojectmanager.qbs
index 42b86ba0297..753610b4cc1 100644
--- a/src/plugins/mesonprojectmanager/mesonprojectmanager.qbs
+++ b/src/plugins/mesonprojectmanager/mesonprojectmanager.qbs
@@ -4,7 +4,7 @@ Project {
     name: "MesonProjectManager"
 
     property stringList testDefines: [
-        'MESON_SAMPLES_DIR="' + FileInfo.joinPaths(sourceDirectory, "tests", "resources") + '"',
+        'MESON_SAMPLES_DIR="' + FileInfo.joinPaths(path, "tests", "resources") + '"',
     ]
 
     QtcPlugin {