diff --git a/composer.json b/composer.json
index e8de185..a501ee1 100644
--- a/composer.json
+++ b/composer.json
@@ -47,9 +47,10 @@
     }
   },
   "scripts": {
-    "phpstan": "vendor/bin/phpstan analyse",
-    "tests": "vendor/bin/tester -s --colors 1 -s -C tests/src",
-    "coverage": "vendor/bin/tester --coverage coverage.html --coverage-src src/ --colors 1 -s -C tests/src"
+    "coverage": "vendor/bin/tester --coverage coverage.html --coverage-src src/ --colors 1 -s -C tests/src",
+    "qa": "composer stan && composer tests",
+    "stan": "vendor/bin/phpstan analyse",
+    "tests": "vendor/bin/tester --colors 1 -s -C tests/src"
   },
   "suggest": {
     "guzzlehttp/guzzle": "As default implementation for PSR-7, PSR-17 and PSR-18 standards."
diff --git a/src/Ares/Core/JsonToDataTransformer.php b/src/Ares/Core/JsonToDataTransformer.php
index 35d4101..b1e1729 100644
--- a/src/Ares/Core/JsonToDataTransformer.php
+++ b/src/Ares/Core/JsonToDataTransformer.php
@@ -24,17 +24,13 @@ public function transform(stdClass $json): Data
 		$data->vat_payer = $data->sources[Sources::SER_NO_DPH] === true;
 		$data->company = Strings::trimNull($json->obchodniJmeno ?? null);
 
-		$data->zip = Strings::trimNull(Strings::replaceSpace((string) ($json->sidlo->psc ?? $json->sidlo->pscTxt ?? ''))); // input is int
-		$data->street = Strings::trimNull($json->sidlo->nazevUlice ?? null);
-		$data->country = Strings::trimNull($json->sidlo->nazevStatu ?? null);
-		$data->country_code = Strings::trimNull($json->sidlo->kodStatu ?? null);
-		$data->city = Strings::trimNull($json->sidlo->nazevObce ?? null);
-		$data->city_post = Strings::trimNull($json->sidlo->nazevMestskeCastiObvodu ?? null);
-		$data->city_district = Strings::trimNull($json->sidlo->nazevCastiObce ?? null);
-		$data->district = Strings::trimNull($json->sidlo->nazevOkresu ?? null);
-		$data->house_number = Helper::houseNumber((string) ($json->sidlo->cisloDomovni ?? $json->sidlo->cisloDoAdresy ?? ''), (string) ($json->sidlo->cisloOrientacni ?? ''), $json->sidlo->cisloOrientacniPismeno ?? '');
-
-		if ($data->zip === null && $data->street === null && $data->house_number === null && $data->city === null && isset($json->sidlo->textovaAdresa)) {
+		$addressExists = isset($json->sidlo) && self::updateAddress($data, $json->sidlo);
+
+		if ($addressExists === false && isset($json->dalsiUdaje[0]->sidlo[0]->sidlo)) {
+			$addressExists = self::updateAddress($data, $json->dalsiUdaje[0]->sidlo[0]->sidlo);
+		}
+
+		if ($addressExists === false && isset($json->sidlo->textovaAdresa)) {
 			[
 				'zip' => $data->zip,
 				'street' => $data->street,
@@ -56,4 +52,34 @@ public function transform(stdClass $json): Data
 		return $data;
 	}
 
+
+	private static function updateAddress(Data $data, stdClass $sidlo): bool
+	{
+		$data->zip = Strings::trimNull(Strings::replaceSpace((string) ($sidlo->psc ?? $sidlo->pscTxt ?? ''))); // input is int
+		$data->street = Strings::trimNull($sidlo->nazevUlice ?? null);
+		$data->country = Strings::trimNull($sidlo->nazevStatu ?? null);
+		$data->country_code = Strings::trimNull($sidlo->kodStatu ?? null);
+		$data->city = Strings::trimNull($sidlo->nazevObce ?? null);
+		$data->city_post = Strings::trimNull($sidlo->nazevMestskeCastiObvodu ?? null);
+		$data->city_district = Strings::trimNull($sidlo->nazevCastiObce ?? null);
+		$data->district = Strings::trimNull($sidlo->nazevOkresu ?? null);
+		$data->house_number = Helper::houseNumber((string) ($sidlo->cisloDomovni ?? $sidlo->cisloDoAdresy ?? ''), (string) ($sidlo->cisloOrientacni ?? ''), $sidlo->cisloOrientacniPismeno ?? '');
+
+		return self::isAddressFilled($data);
+	}
+
+
+	private static function isAddressFilled(Data $data): bool
+	{
+		return $data->zip !== null
+			|| $data->street !== null
+			|| $data->country !== null
+			|| $data->country_code !== null
+			|| $data->city !== null
+			|| $data->city_post !== null
+			|| $data->city_district !== null
+			|| $data->district !== null
+			|| $data->house_number !== null;
+	}
+
 }
diff --git a/tests/fixtures/ares/26577321.json b/tests/fixtures/ares/26577321.json
new file mode 100644
index 0000000..fdcaa1b
--- /dev/null
+++ b/tests/fixtures/ares/26577321.json
@@ -0,0 +1,39 @@
+{
+    "active": true,
+    "city": "Teplice",
+    "company": "Sportovní klub PRO SPORT Teplice spolek",
+    "created": "2008-11-25T00:00:00+01:00",
+    "dissolved": null,
+    "city_district": "Teplice",
+    "city_post": null,
+    "in": "26577321",
+    "is_person": false,
+    "legal_form_code": 706,
+    "house_number": "2959",
+    "street": "U Panoramy",
+    "district": "Teplice",
+    "tin": null,
+    "vat_payer": false,
+    "zip": "41501",
+    "country": "Česká republika",
+    "country_code": "CZ",
+    "nace": [
+        "93120"
+    ],
+    "sources": {
+        "stavZdrojeVr": true,
+        "stavZdrojeRes": true,
+        "stavZdrojeRzp": "NEEXISTUJICI",
+        "stavZdrojeNrpzs": "NEEXISTUJICI",
+        "stavZdrojeRpsh": "NEEXISTUJICI",
+        "stavZdrojeRcns": "NEEXISTUJICI",
+        "stavZdrojeSzr": "NEEXISTUJICI",
+        "stavZdrojeDph": "NEEXISTUJICI",
+        "stavZdrojeSd": "NEEXISTUJICI",
+        "stavZdrojeIr": "NEEXISTUJICI",
+        "stavZdrojeCeu": "NEEXISTUJICI",
+        "stavZdrojeRs": "NEEXISTUJICI",
+        "stavZdrojeRed": true,
+        "stavZdrojeMonitor": "NEEXISTUJICI"
+    }
+}
\ No newline at end of file
diff --git a/tests/src/E2E/Ares/CoreTest.php b/tests/src/E2E/Ares/CoreTest.php
index 1390c6f..757f549 100644
--- a/tests/src/E2E/Ares/CoreTest.php
+++ b/tests/src/E2E/Ares/CoreTest.php
@@ -28,6 +28,7 @@ protected static function getMask(): string
 	protected function provideCore(): array
 	{
 		return [
+			['26577321'], // address from dalsiUdaje[0]->sidlo[0]->sidlo
 			['25528351'], // diff address
 			['67909442'], // create date does not exist
 			['27735753'], // create date does not exist