diff --git a/src/tools/clangpchmanagerbackend/source/pchmanagerserver.cpp b/src/tools/clangpchmanagerbackend/source/pchmanagerserver.cpp
index ec0d89d2c6b..b393a8e4650 100644
--- a/src/tools/clangpchmanagerbackend/source/pchmanagerserver.cpp
+++ b/src/tools/clangpchmanagerbackend/source/pchmanagerserver.cpp
@@ -220,7 +220,7 @@ void PchManagerServer::pathsWithIdsChanged(const std::vector<IdPaths> &idPaths)
 
 void PchManagerServer::pathsChanged(const FilePathIds &filePathIds)
 {
-    m_buildDependenciesStorage.insertOrUpdateIndexingTimeStamps(filePathIds, 0);
+    m_buildDependenciesStorage.insertOrUpdateIndexingTimeStamps(filePathIds, -1);
 }
 
 void PchManagerServer::setPchCreationProgress(int progress, int total)