diff --git a/src/audio/SDL_sysaudio.h b/src/audio/SDL_sysaudio.h
index 5961ce44b..d095b779f 100644
--- a/src/audio/SDL_sysaudio.h
+++ b/src/audio/SDL_sysaudio.h
@@ -205,7 +205,6 @@ extern AudioBootStrap FUSIONSOUND_bootstrap;
 extern AudioBootStrap ANDROIDAUDIO_bootstrap;
 extern AudioBootStrap PSPAUDIO_bootstrap;
 extern AudioBootStrap EMSCRIPTENAUDIO_bootstrap;
-extern AudioBootStrap QNX_bootstrap;
 
 #endif /* SDL_sysaudio_h_ */