diff --git a/src/main/resources/reference.conf b/src/main/resources/reference.conf
index 88fb6f9..eee59b2 100644
--- a/src/main/resources/reference.conf
+++ b/src/main/resources/reference.conf
@@ -150,7 +150,7 @@ kinesis {
          # guarantee that core files will be written on a crash, since that is dependent on operation
          # system settings that's beyond the control of individual processes.
          # Default: false
-         EnableCoreDumps = false
+         #EnableCoreDumps = false
 
          # Use a custom Kinesis endpoint.
          #
@@ -166,7 +166,7 @@ kinesis {
          # Default: 443
          # Minimum: 1
          # Maximum (inclusive): 65535
-         KinesisPort = 443
+         #KinesisPort = 443
 
          # If true, throttled puts are not retried. The records that got throttled
          # will be failed immediately upon receiving the throttling error. This is