diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 2e05e79de..bfb22fd2f 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -3544,6 +3544,10 @@ bool FurnaceGUI::loop() {
           break;
         case SDL_DROPFILE:
           if (ev.drop.file!=NULL) {
+            if (introPos<11.0) {
+              SDL_free(ev.drop.file);
+              break;
+            }
             int sampleCountBefore=e->song.sampleLen;
             std::vector<DivInstrument*> instruments=e->instrumentFromFile(ev.drop.file,true,settings.readInsNames);
             DivWavetable* droppedWave=NULL;