diff --git a/lib/Client.php b/lib/Client.php
index 94bb2a4..72e8090 100644
--- a/lib/Client.php
+++ b/lib/Client.php
@@ -598,7 +598,7 @@ private function addLocalPersonAndGroupProperties(
         array $groupProperties
     ): array {
         $allPersonProperties = array_merge(
-            ["\distinct_id" => $distinctId],
+            ["distinct_id" => $distinctId],
             $personProperties
         );
 
diff --git a/test/FeatureFlagTest.php b/test/FeatureFlagTest.php
index 396afd1..5e5fbe2 100644
--- a/test/FeatureFlagTest.php
+++ b/test/FeatureFlagTest.php
@@ -681,7 +681,7 @@ public function testMatchPropertyRelativeDateOperators(): void
                     "key" => "2022-05-30",
                 ]);
             } catch (InconclusiveMatchException $exception) {
-                self::assertStringContainsString("The date set on the flag is not a valid format", $exception->getMessage());
+                self::assertStringContainsString("The date provided 1234 must be a string or date object", $exception->getMessage());
             }
 
             try {
@@ -689,7 +689,7 @@ public function testMatchPropertyRelativeDateOperators(): void
                     "key" => 1,
                 ]);
             } catch (InconclusiveMatchException $exception) {
-                self::assertStringContainsString("The date set on the flag is not a valid format", $exception->getMessage());
+                self::assertStringContainsString("The date provided 1234 must be a string or date object", $exception->getMessage());
             }
 
             // # Try all possible relative dates
diff --git a/test/PostHogTest.php b/test/PostHogTest.php
index 52fa4dc..e3a2a7e 100644
--- a/test/PostHogTest.php
+++ b/test/PostHogTest.php
@@ -495,7 +495,7 @@ public function testDefaultPropertiesGetAddedProperly(): void
             'random_key',
             'some_id',
             array("company" => "id:5", "instance" => "app.posthog.com"),
-            array("\distinct_id" => "override"),
+            array("distinct_id" => "override"),
             array("company" => array("\$group_key" => "group_override"), "instance" => array("\$group_key" => "app.posthog.com"))
         );
         $this->assertEquals(