diff --git a/assets/docs/configuration/sources/pubsub-full-example.hcl b/assets/docs/configuration/sources/pubsub-full-example.hcl
index 988e7449..34a0f98b 100644
--- a/assets/docs/configuration/sources/pubsub-full-example.hcl
+++ b/assets/docs/configuration/sources/pubsub-full-example.hcl
@@ -17,8 +17,13 @@ source {
     # Maximum size of unprocessed messages (default 1e9)
     max_outstanding_bytes = 2e9
 
+    # Minimum ack extension period when a message is received
     min_extension_period_seconds = 10
 
-    streaming_pull_goroutines = 2
+    # Number of streaming pull connections to open at once
+    streaming_pull_goroutines = 1
+
+    # Configures the GRPC connection pool size of the pubsub client
+    grpc_connection_pool_size = 4
   }
 }
diff --git a/pkg/source/pubsub/pubsub_source.go b/pkg/source/pubsub/pubsub_source.go
index adedd826..dfda4853 100644
--- a/pkg/source/pubsub/pubsub_source.go
+++ b/pkg/source/pubsub/pubsub_source.go
@@ -36,7 +36,7 @@ type Configuration struct {
 	MaxOutstandingBytes       int    `hcl:"max_outstanding_bytes,optional"`
 	MinExtensionPeriodSeconds int    `hcl:"min_extension_period_seconds,optional"`
 	StreamingPullGoRoutines   int    `hcl:"streaming_pull_goroutines,optional"`
-	GRPCConnectionPool        int    `hcl:"grpc_connection_pool,optional"`
+	GRPCConnectionPool        int    `hcl:"grpc_connection_pool_size,optional"`
 }
 
 // pubSubSource holds a new client for reading messages from PubSub