diff --git a/src/plugins/qbsprojectmanager/qbsproject.cpp b/src/plugins/qbsprojectmanager/qbsproject.cpp
index 682c65395bd..d9f7bc6a504 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.cpp
+++ b/src/plugins/qbsprojectmanager/qbsproject.cpp
@@ -291,8 +291,12 @@ void QbsProject::handleQbsParsingDone(bool success)
 
     if (success) {
         m_qbsProject = m_qbsProjectParser->qbsProject();
+        const qbs::ProjectData &projectData = m_qbsProject.projectData();
         QTC_CHECK(m_qbsProject.isValid());
-        readQbsData();
+        if (projectData != m_projectData) {
+            m_projectData = projectData;
+            readQbsData();
+        }
     } else {
         m_qbsUpdateFutureInterface->reportCanceled();
     }
diff --git a/src/plugins/qbsprojectmanager/qbsproject.h b/src/plugins/qbsprojectmanager/qbsproject.h
index ab86c24074a..c2dde5d5a68 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.h
+++ b/src/plugins/qbsprojectmanager/qbsproject.h
@@ -146,6 +146,7 @@ private:
     const QString m_projectName;
     const QString m_fileName;
     qbs::Project m_qbsProject;
+    qbs::ProjectData m_projectData;
     QSet<Core::IDocument *> m_qbsDocuments;
     QbsRootProjectNode *m_rootProjectNode;