diff --git a/plugins/qmljs/duchain/cache.cpp b/plugins/qmljs/duchain/cache.cpp
--- a/plugins/qmljs/duchain/cache.cpp
+++ b/plugins/qmljs/duchain/cache.cpp
@@ -125,6 +125,8 @@
         // and skip everything else
         if (filePath.endsWith(QLatin1String("plugins.qmltypes"))) {
             return QStringList() << filePath;
+        } else if (fileInfo.dir().exists(QLatin1String("plugins.qmltypes"))) {
+            return {fileInfo.dir().filePath(QLatin1String("plugins.qmltypes"))};
         }
 
         // Non-so files don't need any treatment