diff --git a/spec/ddtrace/tracer_integration_spec.rb b/spec/ddtrace/tracer_integration_spec.rb
index d70e7b9690d..7057ccf201f 100644
--- a/spec/ddtrace/tracer_integration_spec.rb
+++ b/spec/ddtrace/tracer_integration_spec.rb
@@ -9,6 +9,10 @@
   subject(:tracer) { described_class.new(writer: FauxWriter.new) }
   let(:spans) { tracer.writer.spans(:keep) }
 
+  after do
+    tracer.shutdown! # Ensure no state gets left behind
+  end
+
   def sampling_priority_metric(span)
     span.get_metric(Datadog::Ext::DistributedTracing::SAMPLING_PRIORITY_KEY)
   end