diff --git a/src/libs/cplusplus/FindUsages.cpp b/src/libs/cplusplus/FindUsages.cpp
index ae18b0794f9..173a6e2a5e6 100644
--- a/src/libs/cplusplus/FindUsages.cpp
+++ b/src/libs/cplusplus/FindUsages.cpp
@@ -170,7 +170,7 @@ void FindUsages::reportResult(unsigned tokenIndex)
 
     const int len = tk.utf16chars();
 
-    const Usage u(_doc->fileName(), lineText, line, col, len);
+    const Usage u(Utils::FileName::fromString(_doc->fileName()), lineText, line, col, len);
     _usages.append(u);
     _references.append(tokenIndex);
 }
diff --git a/src/libs/cplusplus/FindUsages.h b/src/libs/cplusplus/FindUsages.h
index 897106b33e6..deed69276aa 100644
--- a/src/libs/cplusplus/FindUsages.h
+++ b/src/libs/cplusplus/FindUsages.h
@@ -30,6 +30,7 @@
 #include "TypeOfExpression.h"
 
 #include <cplusplus/ASTVisitor.h>
+#include <utils/fileutils.h>
 
 #include <QSet>
 
@@ -39,11 +40,11 @@ class CPLUSPLUS_EXPORT Usage
 {
 public:
     Usage() = default;
-    Usage(const QString &path, const QString &lineText, int line, int col, int len)
+    Usage(const Utils::FileName &path, const QString &lineText, int line, int col, int len)
         : path(path), lineText(lineText), line(line), col(col), len(len) {}
 
 public:
-    QString path;
+    Utils::FileName path;
     QString lineText;
     int line = 0;
     int col = 0;
diff --git a/src/plugins/cpptools/cppfindreferences.cpp b/src/plugins/cpptools/cppfindreferences.cpp
index 2283a7b9b1d..de598e3d619 100644
--- a/src/plugins/cpptools/cppfindreferences.cpp
+++ b/src/plugins/cpptools/cppfindreferences.cpp
@@ -469,7 +469,7 @@ static void displayResults(SearchResult *search, QFutureWatcher<Usage> *watcher,
 {
     for (int index = first; index != last; ++index) {
         Usage result = watcher->future().resultAt(index);
-        search->addResult(result.path,
+        search->addResult(result.path.toString(),
                           result.line,
                           result.lineText,
                           result.col,
@@ -536,7 +536,7 @@ restart_search:
                 if (macro.name() == useMacro.name()) {
                     unsigned column;
                     const QString &lineSource = matchingLine(use.bytesBegin(), source, &column);
-                    usages.append(Usage(fileName.toString(), lineSource, use.beginLine(), column,
+                    usages.append(Usage(fileName, lineSource, use.beginLine(), column,
                                         useMacro.nameToQString().size()));
                 }
             }