diff --git a/src/main.cpp b/src/main.cpp
index 30e8a4c..397073b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -117,10 +117,10 @@ int main(int argc, char **argv)
 			meta.width = img.width;
 			meta.height = img.height;
 			meta.palette_count = 0;
-			meta.original_size = img.data.size();
+			meta.original_size = img255_size*sizeof(uint32_t);
 
 			uint8_t compress[uint64_t(meta.original_size*1.5)];
-			meta.compress_size = fastlz_compress_level(1, img.data.data(), meta.original_size, compress);
+			meta.compress_size = fastlz_compress_level(2, img255, meta.original_size, compress);
 
 			Palette palette(0);
 
diff --git a/src/quantizer.cpp b/src/quantizer.cpp
index e83cac0..3f8e041 100644
--- a/src/quantizer.cpp
+++ b/src/quantizer.cpp
@@ -106,7 +106,7 @@ ImageMapped Quantize(const Image &image, Palette &palette_output, int num_colors
 
 	else if (format == Format_INDEXED_32A8)
 	{
-		ImageMapped packed(output.size());
+		ImageMapped packed;
 		packed.reserve((output.size()+3) / 4);
 
 		for (int offset=0; offset<output.size(); offset++) {