diff --git a/src/apps/midiplayer/MidiPlayerWindow.cpp b/src/apps/midiplayer/MidiPlayerWindow.cpp
index e581dae432..616ac105ce 100644
--- a/src/apps/midiplayer/MidiPlayerWindow.cpp
+++ b/src/apps/midiplayer/MidiPlayerWindow.cpp
@@ -36,7 +36,7 @@
 
 MidiPlayerWindow::MidiPlayerWindow()
 	: BWindow(BRect(0, 0, 1, 1), "MIDI Player", B_TITLED_WINDOW, 
-	          B_ASYNCHRONOUS_CONTROLS | B_NOT_RESIZABLE)
+	          B_ASYNCHRONOUS_CONTROLS | B_NOT_RESIZABLE | B_NOT_ZOOMABLE)
 {
 	playing = false;
 	scopeEnabled = true;