diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index a3cb5d32f14..30ce69c24ea 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -1172,6 +1172,9 @@ void QIcon::addFile(const QString &fileName, const QSize &size, Mode mode, State
     if (!alreadyAdded)
         d->engine->addFile(fileName, size, mode, state);
 
+    if (d->engine->key() == "svg"_L1)   // not needed and also not supported
+        return;
+
     // Check if a "@Nx" file exists and add it.
     QString atNxFileName = qt_findAtNxFile(fileName, qApp->devicePixelRatio());
     if (atNxFileName != fileName)