diff --git a/sentry-ruby/lib/sentry/client.rb b/sentry-ruby/lib/sentry/client.rb
index d23c23e6a..40d01c69d 100644
--- a/sentry-ruby/lib/sentry/client.rb
+++ b/sentry-ruby/lib/sentry/client.rb
@@ -21,7 +21,7 @@ def initialize(configuration)
     end
 
     def capture_event(event, scope, hint = {})
-      return false unless configuration.sending_allowed?
+      return unless configuration.sending_allowed?
 
       scope.apply_to_event(event, hint)
 
diff --git a/sentry-ruby/lib/sentry/hub.rb b/sentry-ruby/lib/sentry/hub.rb
index 407ff34c1..d6cd10556 100644
--- a/sentry-ruby/lib/sentry/hub.rb
+++ b/sentry-ruby/lib/sentry/hub.rb
@@ -110,7 +110,7 @@ def capture_event(event, **options, &block)
 
       event = current_client.capture_event(event, scope, hint)
 
-      @last_event_id = event.event_id
+      @last_event_id = event&.event_id
       event
     end
 
diff --git a/sentry-ruby/spec/sentry/client_spec.rb b/sentry-ruby/spec/sentry/client_spec.rb
index a0c5e1a63..1c03e1893 100644
--- a/sentry-ruby/spec/sentry/client_spec.rb
+++ b/sentry-ruby/spec/sentry/client_spec.rb
@@ -55,7 +55,7 @@ def sentry_context
 
         returned = subject.capture_event(event, scope)
 
-        expect(returned).to eq(false)
+        expect(returned).to eq(nil)
       end
 
       context "when async raises an exception" do
diff --git a/sentry-ruby/spec/sentry/hub_spec.rb b/sentry-ruby/spec/sentry/hub_spec.rb
index 5dd80a39d..f1fd697ee 100644
--- a/sentry-ruby/spec/sentry/hub_spec.rb
+++ b/sentry-ruby/spec/sentry/hub_spec.rb
@@ -19,6 +19,19 @@
   subject { described_class.new(client, scope) }
 
   shared_examples "capture_helper" do
+    context "with sending_allowed? condition" do
+      before do
+        expect(configuration).to receive(:sending_allowed?).and_return(false)
+      end
+
+      it "doesn't send the event nor assign last_event_id" do
+        subject.send(capture_helper, capture_subject)
+
+        expect(transport.events).to be_empty
+        expect(subject.last_event_id).to eq(nil)
+      end
+    end
+
     context "with custom attributes" do
       it "updates the event with custom attributes" do
         subject.send(capture_helper, capture_subject, tags: { foo: "bar" })
@@ -147,7 +160,7 @@
   describe '#capture_event' do
     let(:exception) { ZeroDivisionError.new("divided by 0") }
     let!(:event) do
-      subject.capture_exception(exception)
+      client.event_from_exception(exception)
     end
 
     it "returns an Event instance" do