diff --git a/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp b/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
index 0b5ce6d1c12..89bb848464b 100644
--- a/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
+++ b/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
@@ -218,9 +218,7 @@ QVariantMap DefaultPropertyProvider::autoGeneratedProperties(const ProjectExplor
         data.insert(QLatin1String(QBS_ARCHITECTURE), qbs::canonicalArchitecture(architecture));
     }
 
-    QStringList targetOS = targetOSList(targetAbi, k);
-    if (!targetOS.isEmpty())
-        data.insert(QLatin1String(QBS_TARGETOS), targetOS);
+    data.insert(QLatin1String(QBS_TARGETOS), targetOSList(targetAbi, k));
 
     QStringList toolchain = toolchainList(mainTc);