diff --git a/src/State/Scope.php b/src/State/Scope.php
index d10e39025..546072f4e 100644
--- a/src/State/Scope.php
+++ b/src/State/Scope.php
@@ -378,9 +378,12 @@ public function applyToEvent(Event $event, ?EventHint $hint = null, ?Options $op
         /**
          * Apply the trace context to errors if there is a Span on the Scope.
          * Else fallback to the propagation context.
+         * But do not override a trace context already present.
          */
         if ($this->span !== null) {
-            $event->setContext('trace', $this->span->getTraceContext());
+            if (!\array_key_exists('trace', $event->getContexts())) {
+                $event->setContext('trace', $this->span->getTraceContext());
+            }
 
             // Apply the dynamic sampling context to errors if there is a Transaction on the Scope
             $transaction = $this->span->getTransaction();
@@ -388,7 +391,9 @@ public function applyToEvent(Event $event, ?EventHint $hint = null, ?Options $op
                 $event->setSdkMetadata('dynamic_sampling_context', $transaction->getDynamicSamplingContext());
             }
         } else {
-            $event->setContext('trace', $this->propagationContext->getTraceContext());
+            if (!\array_key_exists('trace', $event->getContexts())) {
+                $event->setContext('trace', $this->propagationContext->getTraceContext());
+            }
 
             $dynamicSamplingContext = $this->propagationContext->getDynamicSamplingContext();
             if ($dynamicSamplingContext === null && $options !== null) {
diff --git a/tests/State/HubTest.php b/tests/State/HubTest.php
index f3949bf04..a2d014648 100644
--- a/tests/State/HubTest.php
+++ b/tests/State/HubTest.php
@@ -851,4 +851,33 @@ public function testGetTransactionReturnsNullIfNoTransactionIsSetOnTheScope(): v
 
         $this->assertNull($hub->getTransaction());
     }
+
+    public function testEventTraceContextIsAlwaysFilled(): void
+    {
+        $hub = new Hub();
+
+        $event = Event::createEvent();
+
+        $hub->configureScope(function (Scope $scope) use ($event): void {
+            $event = $scope->applyToEvent($event);
+
+            $this->assertNotEmpty($event->getContexts()['trace']);
+        });
+    }
+
+    public function testEventTraceContextIsNotOverridenWhenPresent(): void
+    {
+        $hub = new Hub();
+
+        $traceContext = ['foo' => 'bar'];
+
+        $event = Event::createEvent();
+        $event->setContext('trace', $traceContext);
+
+        $hub->configureScope(function (Scope $scope) use ($event, $traceContext): void {
+            $event = $scope->applyToEvent($event);
+
+            $this->assertEquals($event->getContexts()['trace'], $traceContext);
+        });
+    }
 }