diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py
index 2e3b99500d9..4be75c5335e 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/src/opentelemetry/exporter/otlp/proto/grpc/exporter.py
@@ -243,7 +243,9 @@ def __init__(
         ) or Compression.NoCompression
 
         if insecure:
-            self._channel = insecure_channel(self._endpoint, compression=compression)
+            self._channel = insecure_channel(
+                self._endpoint, compression=compression
+            )
         else:
             credentials = _get_credentials(
                 credentials,