diff --git a/ladspa-lv2/libmain-lv2.cpp b/ladspa-lv2/libmain-lv2.cpp
index f4a948e..3e41ffb 100644
--- a/ladspa-lv2/libmain-lv2.cpp
+++ b/ladspa-lv2/libmain-lv2.cpp
@@ -29,6 +29,7 @@
 
 extern "C" {
 
+LV2_SYMBOL_EXPORT
 const LV2_Descriptor *lv2_descriptor(uint32_t index)
 {
     return RubberBandPitchShifter::getDescriptor(index);