diff --git a/src/apk_extract.h b/src/apk_extract.h
index 94fc401..c44ed87 100644
--- a/src/apk_extract.h
+++ b/src/apk_extract.h
@@ -14,7 +14,7 @@
 #include "apk_print.h"
 #include "apk_io.h"
 
-struct adb;
+struct adb_obj;
 struct apk_ctx;
 struct apk_extract_ctx;
 
@@ -30,8 +30,8 @@ int apk_extract_file(int atfd, const struct apk_file_info *ae,
 struct apk_extract_ops {
 	int (*v2index)(struct apk_extract_ctx *, apk_blob_t *desc, struct apk_istream *is);
 	int (*v2meta)(struct apk_extract_ctx *, struct apk_istream *is);
-	int (*v3index)(struct apk_extract_ctx *, struct adb *);
-	int (*v3meta)(struct apk_extract_ctx *, struct adb *);
+	int (*v3index)(struct apk_extract_ctx *, struct adb_obj *);
+	int (*v3meta)(struct apk_extract_ctx *, struct adb_obj *);
 	int (*script)(struct apk_extract_ctx *, unsigned int script, size_t size, struct apk_istream *is);
 	int (*file)(struct apk_extract_ctx *, const struct apk_file_info *fi, struct apk_istream *is);
 };
diff --git a/src/app_extract.c b/src/app_extract.c
index 7c3fa58..0d13db1 100644
--- a/src/app_extract.c
+++ b/src/app_extract.c
@@ -133,7 +133,7 @@ static int apk_extract_volume(struct apk_ctx *ac, const struct apk_file_info *fi
 	return r;
 }
 
-static int extract_v3_meta(struct apk_extract_ctx *ectx, struct adb *db)
+static int extract_v3_meta(struct apk_extract_ctx *ectx, struct adb_obj *pkg)
 {
 	return 0;
 }
diff --git a/src/app_manifest.c b/src/app_manifest.c
index f048d28..5c2e085 100644
--- a/src/app_manifest.c
+++ b/src/app_manifest.c
@@ -87,19 +87,18 @@ static int process_pkg_file(struct apk_extract_ctx *ectx, const struct apk_file_
 	return 0;
 }
 
-static int process_v3_meta(struct apk_extract_ctx *ectx, struct adb *db)
+static int process_v3_meta(struct apk_extract_ctx *ectx, struct adb_obj *pkg)
 {
 	struct manifest_file_ctx *mctx = container_of(ectx, struct manifest_file_ctx, ectx);
 	struct apk_out *out = mctx->out;
-	struct adb_obj pkg, paths, path, files, file;
+	struct adb_obj paths, path, files, file;
 	struct apk_digest digest;
 	struct apk_pathbuilder pb;
 	char buf[APK_DIGEST_MAX_LENGTH*2+1];
 	apk_blob_t hex;
 	int i, j;
 
-	adb_r_rootobj(db, &pkg, &schema_package);
-	adb_ro_obj(&pkg, ADBI_PKG_PATHS, &paths);
+	adb_ro_obj(pkg, ADBI_PKG_PATHS, &paths);
 
 	for (i = ADBI_FIRST; i <= adb_ra_num(&paths); i++) {
 		adb_ro_obj(&paths, i, &path);
diff --git a/src/app_mkndx.c b/src/app_mkndx.c
index b26c2ff..a68e18b 100644
--- a/src/app_mkndx.c
+++ b/src/app_mkndx.c
@@ -176,15 +176,13 @@ static int mkndx_parse_v2meta(struct apk_extract_ctx *ectx, struct apk_istream *
 	return 0;
 }
 
-static int mkndx_parse_v3meta(struct apk_extract_ctx *ectx, struct adb *db)
+static int mkndx_parse_v3meta(struct apk_extract_ctx *ectx, struct adb_obj *pkg)
 {
 	struct mkndx_ctx *ctx = container_of(ectx, struct mkndx_ctx, ectx);
-	struct adb_obj obj;
-
-	adb_r_rootobj(db, &obj, &schema_package);
+	struct adb *db = pkg->db;
 
 	adb_val_t o = adb_wa_append(&ctx->pkgs,
-		adb_w_copy(&ctx->db, db, adb_ro_val(&obj, ADBI_PKG_PKGINFO)));
+		adb_w_copy(&ctx->db, db, adb_ro_val(pkg, ADBI_PKG_PKGINFO)));
 	if (ADB_IS_ERROR(o)) return -ADB_VAL_VALUE(o);
 	return 0;
 }
diff --git a/src/extract_v3.c b/src/extract_v3.c
index 4d5740f..a5a1459 100644
--- a/src/extract_v3.c
+++ b/src/extract_v3.c
@@ -120,13 +120,14 @@ static int apk_extract_v3_next_file(struct apk_extract_ctx *ectx)
 	int r;
 
 	if (!ctx->cur_path) {
-		r = ectx->ops->v3meta(ectx, &ctx->db);
-		if (r < 0) return r;
-
 		// one time init
 		ctx->cur_path = ADBI_FIRST;
 		ctx->cur_file = 0;
 		adb_r_rootobj(&ctx->db, &ctx->pkg, &schema_package);
+
+		r = ectx->ops->v3meta(ectx, &ctx->pkg);
+		if (r < 0) return r;
+
 		adb_ro_obj(&ctx->pkg, ADBI_PKG_PATHS, &ctx->paths);
 		adb_ro_obj(&ctx->paths, ctx->cur_path, &ctx->path);
 		adb_ro_obj(&ctx->path, ADBI_DI_FILES, &ctx->files);
@@ -190,12 +191,12 @@ static int apk_extract_v3_data_block(struct adb *db, struct adb_block *b, struct
 	return apk_extract_v3_file(ectx, sz, is);
 }
 
-static int apk_extract_v3_verify_index(struct apk_extract_ctx *ectx, struct adb *db)
+static int apk_extract_v3_verify_index(struct apk_extract_ctx *ectx, struct adb_obj *obj)
 {
 	return 0;
 }
 
-static int apk_extract_v3_verify_meta(struct apk_extract_ctx *ectx, struct adb *db)
+static int apk_extract_v3_verify_meta(struct apk_extract_ctx *ectx, struct adb_obj *obj)
 {
 	return 0;
 }
@@ -222,6 +223,7 @@ int apk_extract_v3(struct apk_extract_ctx *ectx, struct apk_istream *is)
 	struct apk_extract_v3_ctx ctx = {
 		.ectx = ectx,
 	};
+	struct adb_obj obj;
 	int r;
 
 	if (IS_ERR(is)) return PTR_ERR(is);
@@ -244,7 +246,8 @@ int apk_extract_v3(struct apk_extract_ctx *ectx, struct apk_istream *is)
 				r = -APKE_FORMAT_NOT_SUPPORTED;
 				break;
 			}
-			r = ectx->ops->v3index(ectx, &ctx.db);
+			adb_r_rootobj(&ctx.db, &obj, &schema_index);
+			r = ectx->ops->v3index(ectx, &obj);
 			break;
 		default:
 			r = -APKE_ADB_SCHEMA;