diff --git a/test/unit/SelfManage/BuildTools/PhpizeBuildToolFinderTest.php b/test/unit/SelfManage/BuildTools/PhpizeBuildToolFinderTest.php
index 3a50a0c1..4db05eeb 100644
--- a/test/unit/SelfManage/BuildTools/PhpizeBuildToolFinderTest.php
+++ b/test/unit/SelfManage/BuildTools/PhpizeBuildToolFinderTest.php
@@ -111,10 +111,14 @@ public function testPhpizeForDifferentPhpApiVersionIsRejected(): void
         putenv('PATH=' . realpath(self::GOOD_PHPIZE_PATH));
 
         $mockPhpBinary = $this->createMock(PhpBinaryPath::class);
-        $mockPhpBinary->method('phpApiVersion')->willReturn('20250925');
+        // This should not be any API version of a real PHP, otherwise this test might pick up a wrong phpize and false-positive :D
+        $mockPhpBinary->method('phpApiVersion')->willReturn('30250925');
         (fn () => $this->phpBinaryPath = '/path/to/php')
             ->bindTo($mockPhpBinary, PhpBinaryPath::class)();
 
+        $goodPhpize = realpath(self::GOOD_PHPIZE_PATH . DIRECTORY_SEPARATOR . 'phpize');
+        self::assertNotFalse($goodPhpize);
+
         self::assertFalse((new PhpizeBuildToolFinder([]))->check(new TargetPlatform(
             OperatingSystem::NonWindows,
             OperatingSystemFamily::Linux,
@@ -123,7 +127,7 @@ public function testPhpizeForDifferentPhpApiVersionIsRejected(): void
             ThreadSafetyMode::NonThreadSafe,
             1,
             null,
-            null,
+            new PhpizePath($goodPhpize),
         )));
 
         putenv('PATH=' . $oldPath);