diff --git a/plugins/fossil/fossilclient.cpp b/plugins/fossil/fossilclient.cpp
index afdfcea09d6..b9bda2f8b41 100644
--- a/plugins/fossil/fossilclient.cpp
+++ b/plugins/fossil/fossilclient.cpp
@@ -847,12 +847,9 @@ bool FossilClient::isVcsFileOrDirectory(const FilePath &filePath) const
                                            HostOsInfo::fileNameCaseSensitivity());
 }
 
-QString FossilClient::findTopLevelForFile(const QFileInfo &file) const
+FilePath FossilClient::findTopLevelForFile(const FilePath &file) const
 {
-    const QString repositoryCheckFile = Constants::FOSSILREPO;
-    return file.isDir() ?
-                VcsBase::findRepositoryForDirectory(file.absoluteFilePath(), repositoryCheckFile) :
-                VcsBase::findRepositoryForDirectory(file.absolutePath(), repositoryCheckFile);
+    return VcsBase::findRepositoryForFile(file, Constants::FOSSILREPO);
 }
 
 bool FossilClient::managesFile(const QString &workingDirectory, const QString &fileName) const
diff --git a/plugins/fossil/fossilclient.h b/plugins/fossil/fossilclient.h
index 75618932fa5..99b7e3ad738 100644
--- a/plugins/fossil/fossilclient.h
+++ b/plugins/fossil/fossilclient.h
@@ -109,7 +109,7 @@ public:
     void revertAll(const QString &workingDir, const QString &revision = QString(),
                    const QStringList &extraOptions = QStringList()) final;
     bool isVcsFileOrDirectory(const Utils::FilePath &filePath) const;
-    QString findTopLevelForFile(const QFileInfo &file) const final;
+    Utils::FilePath findTopLevelForFile(const Utils::FilePath &file) const final;
     bool managesFile(const QString &workingDirectory, const QString &fileName) const;
     unsigned int binaryVersion() const;
     QString binaryVersionString() const;
diff --git a/plugins/fossil/fossilplugin.cpp b/plugins/fossil/fossilplugin.cpp
index 1877bd257d2..14e10aa5da9 100644
--- a/plugins/fossil/fossilplugin.cpp
+++ b/plugins/fossil/fossilplugin.cpp
@@ -165,7 +165,7 @@ public:
     void vcsDescribe(const FilePath &source, const QString &id) final;
 
     Core::ShellCommand *createInitialCheckoutCommand(const QString &url,
-                                                     const FilePath &baseDirectory,
+                                                     const Utils::FilePath &baseDirectory,
                                                      const QString &localName,
                                                      const QStringList &extraArgs) final;
 
@@ -907,10 +907,9 @@ bool FossilPluginPrivate::isVcsFileOrDirectory(const FilePath &filePath) const
 
 bool FossilPluginPrivate::managesDirectory(const FilePath &directory, FilePath *topLevel) const
 {
-    QFileInfo dir(directory.toString());
-    const QString topLevelFound = m_client.findTopLevelForFile(dir);
+    const FilePath topLevelFound = m_client.findTopLevelForFile(directory);
     if (topLevel)
-        *topLevel = FilePath::fromString(topLevelFound);
+        *topLevel = topLevelFound;
     return !topLevelFound.isEmpty();
 }