diff --git a/src/libFLAC/bitbuffer.c b/src/libFLAC/bitbuffer.c
index 62d12ea3..c0e0078d 100644
--- a/src/libFLAC/bitbuffer.c
+++ b/src/libFLAC/bitbuffer.c
@@ -254,6 +254,7 @@ FLAC__BitBuffer *FLAC__bitbuffer_new()
 	FLAC__BitBuffer *bb = (FLAC__BitBuffer*)malloc(sizeof(FLAC__BitBuffer));
 
 	if(0 != bb) {
+		memset(bb, 0, sizeof(FLAC__BitBuffer));
 		bb->buffer = 0;
 		bb->capacity = 0;
 		bb->blurbs = bb->bits = bb->total_bits = 0;
diff --git a/src/libFLAC/file_decoder.c b/src/libFLAC/file_decoder.c
index bf907079..fc79a744 100644
--- a/src/libFLAC/file_decoder.c
+++ b/src/libFLAC/file_decoder.c
@@ -99,20 +99,24 @@ FLAC__FileDecoder *FLAC__file_decoder_new()
 	if(decoder == 0) {
 		return 0;
 	}
+	memset(decoder, 0, sizeof(FLAC__FileDecoder));
+
 	decoder->protected_ = (FLAC__FileDecoderProtected*)malloc(sizeof(FLAC__FileDecoderProtected));
 	if(decoder->protected_ == 0) {
 		free(decoder);
 		return 0;
 	}
+	memset(decoder->protected_, 0, sizeof(FLAC__FileDecoderProtected));
+
 	decoder->private_ = (FLAC__FileDecoderPrivate*)malloc(sizeof(FLAC__FileDecoderPrivate));
 	if(decoder->private_ == 0) {
 		free(decoder->protected_);
 		free(decoder);
 		return 0;
 	}
+	memset(decoder->private_, 0, sizeof(FLAC__FileDecoderPrivate));
 
 	decoder->private_->seekable_stream_decoder = FLAC__seekable_stream_decoder_new();
-
 	if(0 == decoder->private_->seekable_stream_decoder) {
 		free(decoder->private_);
 		free(decoder->protected_);
diff --git a/src/libFLAC/seekable_stream_decoder.c b/src/libFLAC/seekable_stream_decoder.c
index cc03795d..79bccfb9 100644
--- a/src/libFLAC/seekable_stream_decoder.c
+++ b/src/libFLAC/seekable_stream_decoder.c
@@ -125,20 +125,24 @@ FLAC__SeekableStreamDecoder *FLAC__seekable_stream_decoder_new()
 	if(decoder == 0) {
 		return 0;
 	}
+	memset(decoder, 0, sizeof(FLAC__SeekableStreamDecoder));
+
 	decoder->protected_ = (FLAC__SeekableStreamDecoderProtected*)malloc(sizeof(FLAC__SeekableStreamDecoderProtected));
 	if(decoder->protected_ == 0) {
 		free(decoder);
 		return 0;
 	}
+	memset(decoder->protected_, 0, sizeof(FLAC__SeekableStreamDecoderProtected));
+
 	decoder->private_ = (FLAC__SeekableStreamDecoderPrivate*)malloc(sizeof(FLAC__SeekableStreamDecoderPrivate));
 	if(decoder->private_ == 0) {
 		free(decoder->protected_);
 		free(decoder);
 		return 0;
 	}
+	memset(decoder->private_, 0, sizeof(FLAC__SeekableStreamDecoderPrivate));
 
 	decoder->private_->stream_decoder = FLAC__stream_decoder_new();
-
 	if(0 == decoder->private_->stream_decoder) {
 		free(decoder->private_);
 		free(decoder->protected_);
diff --git a/src/libFLAC/stream_decoder.c b/src/libFLAC/stream_decoder.c
index 540ae48a..a7a91549 100644
--- a/src/libFLAC/stream_decoder.c
+++ b/src/libFLAC/stream_decoder.c
@@ -146,17 +146,23 @@ FLAC__StreamDecoder *FLAC__stream_decoder_new()
 	if(decoder == 0) {
 		return 0;
 	}
+	memset(decoder, 0, sizeof(FLAC__StreamDecoder));
+
 	decoder->protected_ = (FLAC__StreamDecoderProtected*)malloc(sizeof(FLAC__StreamDecoderProtected));
 	if(decoder->protected_ == 0) {
 		free(decoder);
 		return 0;
 	}
+	memset(decoder->protected_, 0, sizeof(FLAC__StreamDecoderProtected));
+
 	decoder->private_ = (FLAC__StreamDecoderPrivate*)malloc(sizeof(FLAC__StreamDecoderPrivate));
 	if(decoder->private_ == 0) {
 		free(decoder->protected_);
 		free(decoder);
 		return 0;
 	}
+	memset(decoder->private_, 0, sizeof(FLAC__StreamDecoderPrivate));
+
 	decoder->private_->input = FLAC__bitbuffer_new();
 	if(decoder->private_->input == 0) {
 		free(decoder->private_);