diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 61884ea95..4ba1fbeb9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -22,6 +22,7 @@ jobs:
             - uses: shivammathur/setup-php@v2
               with:
                   php-version: ${{ matrix.php }}
+                  extensions: ds
                   coverage: none
 
             - run: composer install --no-progress --prefer-dist
@@ -41,6 +42,7 @@ jobs:
             - uses: shivammathur/setup-php@v2
               with:
                   php-version: 7.4
+                  extensions: ds
                   coverage: none
 
             - run: composer install --no-progress --prefer-dist
diff --git a/src/Tracy/Dumper/Dumper.php b/src/Tracy/Dumper/Dumper.php
index 59946c14d..c8b06ce54 100644
--- a/src/Tracy/Dumper/Dumper.php
+++ b/src/Tracy/Dumper/Dumper.php
@@ -80,6 +80,8 @@ class Dumper
 		\DOMNode::class => [Exposer::class, 'exposeDOMNode'],
 		\DOMNodeList::class => [Exposer::class, 'exposeDOMNodeList'],
 		\DOMNamedNodeMap::class => [Exposer::class, 'exposeDOMNodeList'],
+		\Ds\Collection::class => [Exposer::class, 'exposeDsCollection'],
+		\Ds\Map::class => [Exposer::class, 'exposeDsMap'],
 	];
 
 	/** @var Describer */
diff --git a/src/Tracy/Dumper/Exposer.php b/src/Tracy/Dumper/Exposer.php
index 183da7d74..0e5a1d7ff 100644
--- a/src/Tracy/Dumper/Exposer.php
+++ b/src/Tracy/Dumper/Exposer.php
@@ -179,4 +179,27 @@ public static function exposePhpIncompleteClass(
 		}
 		$value->value = $class . ' (Incomplete Class)';
 	}
+
+
+	public static function exposeDsCollection(
+		\Ds\Collection $obj,
+		Value $value,
+		Describer $describer
+	): void {
+		foreach ($obj as $k => $v) {
+			$describer->addPropertyTo($value, (string) $k, $v, Value::PROP_VIRTUAL);
+		}
+	}
+
+
+	public static function exposeDsMap(
+		\Ds\Map $obj,
+		Value $value,
+		Describer $describer
+	): void {
+		$i = 0;
+		foreach ($obj as $k => $v) {
+			$describer->addPropertyTo($value, (string) $i++, new \Ds\Pair($k, $v), Value::PROP_VIRTUAL);
+		}
+	}
 }
diff --git a/tests/Tracy/Dumper.toText().specials.ds.phpt b/tests/Tracy/Dumper.toText().specials.ds.phpt
new file mode 100644
index 000000000..f005b81e1
--- /dev/null
+++ b/tests/Tracy/Dumper.toText().specials.ds.phpt
@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * Test: Tracy\Dumper::toText() specials
+ * @phpExtension ds
+ */
+
+declare(strict_types=1);
+
+use Tester\Assert;
+use Tracy\Dumper;
+
+require __DIR__ . '/../bootstrap.php';
+
+
+$collection = new Ds\Vector(['value']);
+Assert::match(<<<'XX'
+Ds\Vector #%d%
+   0: 'value'
+XX
+, Dumper::toText($collection));
+
+
+$map = new Ds\Map;
+$map->put('key', 'value');
+Assert::match(<<<'XX'
+Ds\Map #%d%
+   0: Ds\Pair #%d%
+   |  key: 'key'
+   |  value: 'value'
+XX
+, Dumper::toText($map));