diff --git a/src/platformtheme/kdeplatformtheme.h b/src/platformtheme/kdeplatformtheme.h
--- a/src/platformtheme/kdeplatformtheme.h
+++ b/src/platformtheme/kdeplatformtheme.h
@@ -43,6 +43,16 @@
     ~KdePlatformTheme();
 
     QVariant themeHint(ThemeHint hint) const Q_DECL_OVERRIDE;
+#if QT_VERSION >= QT_VERSION_CHECK(5, 8, 0)
+    QIcon fileIcon(const QFileInfo &fileInfo,
+                           QPlatformTheme::IconOptions iconOptions) const override;
+#else
+    QPixmap fileIconPixmap(const QFileInfo &fileInfo, const QSizeF &size,
+                                   QPlatformTheme::IconOptions iconOptions) const override;
+    // this will be the implementation
+    QIcon fileIcon(const QFileInfo &fileInfo,
+                           QPlatformTheme::IconOptions iconOptions) const;
+#endif
     const QPalette *palette(Palette type = SystemPalette) const Q_DECL_OVERRIDE;
     const QFont *font(Font type) const Q_DECL_OVERRIDE;
     QIconEngine *createIconEngine(const QString &iconName) const Q_DECL_OVERRIDE;
diff --git a/src/platformtheme/kdeplatformtheme.cpp b/src/platformtheme/kdeplatformtheme.cpp
--- a/src/platformtheme/kdeplatformtheme.cpp
+++ b/src/platformtheme/kdeplatformtheme.cpp
@@ -50,6 +50,7 @@
 #include <KStandardGuiItem>
 #include <KLocalizedString>
 #include <KWindowSystem>
+#include <KIO/Global>
 
 #if QT_VERSION >= QT_VERSION_CHECK(5,7,0)
 #include "qdbusmenubar_p.h"
@@ -109,6 +110,22 @@
     }
 }
 
+QIcon KdePlatformTheme::fileIcon(const QFileInfo &fileInfo, QPlatformTheme::IconOptions iconOptions) const
+{
+    if (iconOptions.testFlag(DontUseCustomDirectoryIcons) && fileInfo.isDir()) {
+        return QIcon::fromTheme(QLatin1String("inode-directory"));
+    }
+
+    return QIcon::fromTheme(KIO::iconNameForUrl(QUrl::fromLocalFile(fileInfo.absoluteFilePath())));
+}
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 8, 0)
+QPixmap KdePlatformTheme::fileIconPixmap(const QFileInfo &fileInfo, const QSizeF &size, QPlatformTheme::IconOptions iconOptions) const
+{
+    return fileIcon(fileInfo, iconOptions).pixmap(size.toSize(), QIcon::Normal);
+}
+#endif
+
 const QPalette *KdePlatformTheme::palette(Palette type) const
 {
     QPalette *palette = m_hints->palette(type);