diff --git a/README.md b/README.md
index cd478b8..5a0c7c5 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ filza_develop.ipa
 - `mount` lists mounted filesystems.
 - `extract`, `unzip`, `untar`, `un7z`, `unrar` extract zip, tar, tar.gz, gz,
   bz2, xz, zst, 7z and rar through libarchive.
-- `test.deb` (official Procursus `apt 2.9.4-1`) and an executable `test` script
+- `test.deb` (official Debian `apt 2.6.1`, arm64) and an executable `test` script
   are copied into `worse_query` on first launch.
 - `respring` uses Erosion's WebKit pressure method.
 
diff --git a/Tweak.m b/Tweak.m
index 2b088b2..a41e9cb 100644
--- a/Tweak.m
+++ b/Tweak.m
@@ -2080,6 +2080,8 @@ static BOOL hook_isDEBAvailable(id self, SEL _cmd)
 static NSString *hook_dpkgInfo(id self, SEL _cmd, NSString *path)
 {
     NSString *info = WQDebInfoText(path);
+    NSLog(@"[WQDeb] dpkgInfo %@ -> %lu bytes", path,
+          (unsigned long)info.length);
     if (info.length) return info;
     if (orig_dpkgInfo)
         return ((NSString *(*)(id, SEL, NSString *))orig_dpkgInfo)(self, _cmd, path);
diff --git a/WQPackages.m b/WQPackages.m
index 60acb22..ffd0a99 100644
--- a/WQPackages.m
+++ b/WQPackages.m
@@ -248,14 +248,28 @@ static NSDictionary *WQParseControl(NSString *control)
 NSString *WQDebInfoText(NSString *path)
 {
     NSData *archive = [NSData dataWithContentsOfFile:path];
-    if (!archive.length) return nil;
+    if (!archive.length) {
+        NSLog(@"[WQDeb] cannot read %@", path);
+        return nil;
+    }
     NSData *controlArchive = WQArMember(archive, @"control.tar");
-    if (!controlArchive.length) return nil;
+    if (!controlArchive.length) {
+        NSLog(@"[WQDeb] no control archive in %@", path);
+        return nil;
+    }
     NSData *controlData = WQArchiveEntryNamed(controlArchive, @"control");
-    if (!controlData.length) return nil;
+    if (!controlData.length) {
+        NSLog(@"[WQDeb] no control file in %@", path);
+        return nil;
+    }
     NSString *control = [[NSString alloc] initWithData:controlData
         encoding:NSUTF8StringEncoding];
-    if (!control.length) return nil;
+    if (!control.length) {
+        NSLog(@"[WQDeb] control is not UTF-8 in %@", path);
+        return nil;
+    }
+    NSLog(@"[WQDeb] info %@ control=%lu bytes", path,
+          (unsigned long)controlData.length);
     NSMutableString *text = [NSMutableString stringWithFormat:
         @" new Debian package, version 2.0.\n"
         @" size %lu bytes: control archive %lu bytes.\n",
@@ -335,6 +349,7 @@ static BOOL WQInstallDeb(NSString *path, FILE *out, FILE *err,
         ![architecture isEqualToString:@"iphoneos-arm64"] &&
         ![architecture isEqualToString:@"iphoneos-arm"] &&
         ![architecture isEqualToString:@"darwin-arm64"] &&
+        ![architecture isEqualToString:@"arm64"] &&
         ![architecture isEqualToString:@"all"]) {
         fprintf(err, "dpkg: package architecture %s is not native "
                 "(use --force-architecture)\n", architecture.UTF8String);
diff --git a/tests/test.deb b/tests/test.deb
index 77b3a27..0ee506a 100644
Binary files a/tests/test.deb and b/tests/test.deb differ