diff --git a/src/plugins/qmakeprojectmanager/qmakenodes.h b/src/plugins/qmakeprojectmanager/qmakenodes.h
index 3df8d04f5a2..34b89b7e87f 100644
--- a/src/plugins/qmakeprojectmanager/qmakenodes.h
+++ b/src/plugins/qmakeprojectmanager/qmakenodes.h
@@ -302,7 +302,7 @@ struct QMAKEPROJECTMANAGER_EXPORT InstallsItem {
         : path(p), files(f), active(a) {}
     QString path;
     QVector<ProFileEvaluator::SourceFile> files;
-    bool active;
+    bool active = false;
 };
 
 struct QMAKEPROJECTMANAGER_EXPORT InstallsList {