diff --git a/src/libs/utils/stringutils.cpp b/src/libs/utils/stringutils.cpp
index b2a502fd18776cd107c4f48b037638c9f84ec376..cf1b4b36cf9b04664dbd484405ba67b7f6132392 100644
--- a/src/libs/utils/stringutils.cpp
+++ b/src/libs/utils/stringutils.cpp
@@ -92,8 +92,6 @@ QTCREATOR_UTILS_EXPORT QString commonPath(const QStringList &files)
         lastSeparatorPos = common.lastIndexOf(QLatin1Char('\\'));
     if (lastSeparatorPos == -1)
         return QString();
-    if (lastSeparatorPos == -1)
-        return QString();
 #ifdef Q_OS_UNIX
     if (lastSeparatorPos == 0) // Unix: "/a", "/b" -> '/'
         lastSeparatorPos = 1;