diff --git a/aegisub/src/audio_player_portaudio.cpp b/aegisub/src/audio_player_portaudio.cpp
index b065fb6d6..f10e3792f 100644
--- a/aegisub/src/audio_player_portaudio.cpp
+++ b/aegisub/src/audio_player_portaudio.cpp
@@ -278,7 +278,7 @@ wxArrayString PortAudioPlayer::GetOutputDevices(wxString favorite) {
 }
 
 bool PortAudioPlayer::IsPlaying() {
-	return Pa_IsStreamActive(stream);
+	return Pa_IsStreamActive(stream) ? true : false;
 }
 
 #endif // WITH_PORTAUDIO