diff --git a/OpenTelemetryPlan/05-configuration-reference.md b/OpenTelemetryPlan/05-configuration-reference.md
index 6f643f0f80..e83e940cde 100644
--- a/OpenTelemetryPlan/05-configuration-reference.md
+++ b/OpenTelemetryPlan/05-configuration-reference.md
@@ -105,7 +105,7 @@ The authoritative collector config lives in the repo at `docker/telemetry/otel-c
 
 ### 5.5.1 Development Configuration
 
-The development collector enables an OTLP receiver on both gRPC (`0.0.0.0:4317`) and HTTP (`0.0.0.0:4318`), a single `batch` processor (1s timeout, batch size 100), and two exporters: a `logging` exporter for console debugging and `otlp/tempo` (insecure) for trace visualization. The single `traces` pipeline wires receiver → batch → both exporters.
+The development collector enables an OTLP receiver on both gRPC (`0.0.0.0:4317`) and HTTP (`0.0.0.0:4318`), a single `batch` processor (1s timeout, batch size 100), and two exporters: a `logging` exporter for console debugging and `otlp_grpc/tempo` (insecure) for trace visualization. The single `traces` pipeline wires receiver → batch → both exporters.
 
 ### 5.5.2 Production Configuration
 
diff --git a/docker/telemetry/otel-collector-config.yaml b/docker/telemetry/otel-collector-config.yaml
index 4f6f4f1ae4..6a38155f71 100644
--- a/docker/telemetry/otel-collector-config.yaml
+++ b/docker/telemetry/otel-collector-config.yaml
@@ -61,7 +61,7 @@ processors:
 exporters:
   debug:
     verbosity: detailed
-  otlp/tempo:
+  otlp_grpc/tempo:
     endpoint: tempo:4317
     tls:
       insecure: true
@@ -76,4 +76,4 @@ service:
     traces:
       receivers: [otlp]
       processors: [resource/tier, resource/stripsdk, attributes/hash, batch]
-      exporters: [debug, otlp/tempo]
+      exporters: [debug, otlp_grpc/tempo]