diff --git a/exporter/opentelemetry-exporter-jaeger-proto-grpc/tests/test_jaeger_exporter_protobuf.py b/exporter/opentelemetry-exporter-jaeger-proto-grpc/tests/test_jaeger_exporter_protobuf.py
index 6cc4419526..f72b3fd404 100644
--- a/exporter/opentelemetry-exporter-jaeger-proto-grpc/tests/test_jaeger_exporter_protobuf.py
+++ b/exporter/opentelemetry-exporter-jaeger-proto-grpc/tests/test_jaeger_exporter_protobuf.py
@@ -37,6 +37,7 @@
     OTEL_EXPORTER_JAEGER_ENDPOINT,
     OTEL_EXPORTER_JAEGER_TIMEOUT,
     OTEL_RESOURCE_ATTRIBUTES,
+    OTEL_EXPORTER_JAEGER_GRPC_INSECURE,
 )
 from opentelemetry.sdk.resources import SERVICE_NAME, Resource
 from opentelemetry.sdk.trace import TracerProvider
@@ -87,6 +88,7 @@ def test_constructor_by_environment_variables(self):
                 + "/certs/cred.cert",
                 OTEL_RESOURCE_ATTRIBUTES: "service.name=my-opentelemetry-jaeger",
                 OTEL_EXPORTER_JAEGER_TIMEOUT: "5",
+                OTEL_EXPORTER_JAEGER_GRPC_INSECURE: "False",
             },
         )
 
@@ -99,6 +101,7 @@ def test_constructor_by_environment_variables(self):
         self.assertEqual(exporter.collector_endpoint, collector_endpoint)
         self.assertEqual(exporter._timeout, 5)
         self.assertIsNotNone(exporter.credentials)
+        self.assertEqual(exporter.insecure, False)
         env_patch.stop()
 
     # pylint: disable=too-many-locals,too-many-statements