diff --git a/src/plugins/projectexplorer/projectmanager.cpp b/src/plugins/projectexplorer/projectmanager.cpp
index 260bfcb786f..3569e517289 100644
--- a/src/plugins/projectexplorer/projectmanager.cpp
+++ b/src/plugins/projectexplorer/projectmanager.cpp
@@ -521,6 +521,13 @@ Project *ProjectManager::projectForFile(const FilePath &fileName)
     });
 }
 
+QList<Project *> ProjectManager::projectsForFile(const Utils::FilePath &fileName)
+{
+    return Utils::filtered(ProjectManager::projects(), [&fileName](Project *p) {
+        return p->isKnownFile(fileName) || isInProjectSourceDir(fileName, *p);
+    });
+}
+
 bool ProjectManager::isInProjectSourceDir(const Utils::FilePath &filePath, const Project &project)
 {
     for (const Target * const target : project.targets()) {
diff --git a/src/plugins/projectexplorer/projectmanager.h b/src/plugins/projectexplorer/projectmanager.h
index 78b885f4cbe..bc186955a09 100644
--- a/src/plugins/projectexplorer/projectmanager.h
+++ b/src/plugins/projectexplorer/projectmanager.h
@@ -80,6 +80,7 @@ public:
     static QList<Project *> projectOrder(const Project *project = nullptr);
 
     static Project *projectForFile(const Utils::FilePath &fileName);
+    static QList<Project *> projectsForFile(const Utils::FilePath &fileName);
     static bool isInProjectSourceDir(const Utils::FilePath &filePath, const Project &project);
     static Project *projectWithProjectFilePath(const Utils::FilePath &filePath);