diff --git a/distrho/src/DistrhoPluginVST3.cpp b/distrho/src/DistrhoPluginVST3.cpp
index d4d797e4..48dcb64b 100644
--- a/distrho/src/DistrhoPluginVST3.cpp
+++ b/distrho/src/DistrhoPluginVST3.cpp
@@ -3853,6 +3853,7 @@ bool ENTRYFNNAME(void*);
 bool ENTRYFNNAME(void*)
 {
     // find plugin bundle
+    USE_NAMESPACE_DISTRHO;
     static String bundlePath;
     if (bundlePath.isEmpty())
     {