diff --git a/src/corelib/io/qstandardpaths_win.cpp b/src/corelib/io/qstandardpaths_win.cpp
index 478db6c299..d4e0779381 100644
--- a/src/corelib/io/qstandardpaths_win.cpp
+++ b/src/corelib/io/qstandardpaths_win.cpp
@@ -160,10 +160,10 @@ QString QStandardPaths::writableLocation(StandardLocation type)
         // Although Microsoft has a Cache key it is a pointer to IE's cache, not a cache
         // location for everyone.  Most applications seem to be using a
         // cache directory located in their AppData directory
-        return writableLocation(DataLocation) + QLatin1String("\\cache");
+        return writableLocation(DataLocation) + QLatin1String("/cache");
 
     case GenericCacheLocation:
-        return writableLocation(GenericDataLocation) + QLatin1String("\\cache");
+        return writableLocation(GenericDataLocation) + QLatin1String("/cache");
 
     case RuntimeLocation:
     case HomeLocation:
diff --git a/tests/auto/corelib/io/qstandardpaths/tst_qstandardpaths.cpp b/tests/auto/corelib/io/qstandardpaths/tst_qstandardpaths.cpp
index c4453fd5f2..f94c8eac4f 100644
--- a/tests/auto/corelib/io/qstandardpaths/tst_qstandardpaths.cpp
+++ b/tests/auto/corelib/io/qstandardpaths/tst_qstandardpaths.cpp
@@ -45,6 +45,7 @@
 #include <qstandardpaths.h>
 #include <qfileinfo.h>
 #include <qsysinfo.h>
+#include <qregexp.h>
 
 #ifdef Q_OS_UNIX
 #include <unistd.h>
@@ -72,6 +73,7 @@ private slots:
     void testCustomRuntimeDirectory();
     void testAllWritableLocations_data();
     void testAllWritableLocations();
+    void testCleanPath();
 
 private:
 #ifdef Q_XDG_PLATFORM
@@ -430,6 +432,18 @@ void tst_qstandardpaths::testAllWritableLocations()
         QCOMPARE(loc.endsWith(QLatin1Char('/')), false);
 }
 
+void tst_qstandardpaths::testCleanPath()
+{
+    const QRegExp filter(QStringLiteral("\\\\"));
+    QVERIFY(filter.isValid());
+    for (int i = 0; i <= QStandardPaths::GenericCacheLocation; ++i) {
+        const QStringList paths = QStandardPaths::standardLocations(QStandardPaths::StandardLocation(i));
+        QVERIFY2(paths.filter(filter).isEmpty(),
+                 qPrintable(QString::fromLatin1("Backslash found in %1 %2")
+                            .arg(i).arg(paths.join(QLatin1Char(',')))));
+    }
+}
+
 QTEST_MAIN(tst_qstandardpaths)
 
 #include "tst_qstandardpaths.moc"