diff --git a/tagutils/tagutils-aac.c b/tagutils/tagutils-aac.c
index 16b1301..ed6fb55 100644
--- a/tagutils/tagutils-aac.c
+++ b/tagutils/tagutils-aac.c
@@ -107,7 +107,7 @@ _get_aactags(char *file, struct song_metadata *psong)
 			if(fread(current_data, 1, current_size - 8, fin) != current_size - 8)
 				break;
 
-			current_data[len-1] = '\0';
+			current_data[current_size - 8] = '\0';
 			if(!memcmp(current_atom, "\xA9" "nam", 4))
 				psong->title = strdup((char*)&current_data[16]);
 			else if(!memcmp(current_atom, "\xA9" "ART", 4) ||