diff --git a/SDL2pp/Audio.hh b/SDL2pp/Audio.hh
index aa65313..3e70d90 100644
--- a/SDL2pp/Audio.hh
+++ b/SDL2pp/Audio.hh
@@ -42,6 +42,7 @@ private:
 	static void SDLCallback(void *userdata, Uint8* stream, int len);
 
 public:
+	AudioSpec();
 	AudioSpec(int freq, SDL_AudioFormat format, Uint8 channels, Uint16 samples, AudioCallback&& callback = AudioCallback());
 	~AudioSpec();
 
diff --git a/SDL2pp/AudioSpec.cc b/SDL2pp/AudioSpec.cc
index c82f5dd..a339547 100644
--- a/SDL2pp/AudioSpec.cc
+++ b/SDL2pp/AudioSpec.cc
@@ -30,6 +30,10 @@ void AudioSpec::SDLCallback(void *userdata, Uint8* stream, int len) {
 	audiospec->callback_(stream, len);
 }
 
+AudioSpec::AudioSpec() {
+	std::fill((char*)this, (char*)this + sizeof(SDL_AudioSpec), 0);
+}
+
 AudioSpec::AudioSpec(int freq, SDL_AudioFormat format, Uint8 channels, Uint16 samples, AudioSpec::AudioCallback&& callback)
 	  : callback_(std::move(callback)) {
 	std::fill((char*)this, (char*)this + sizeof(SDL_AudioSpec), 0);