Getting scan errors on large *.go files: The file size is too big

I am getting scan error on large *.go files. Error message is "ERROR: Unable to parse file: file:///**/admin_bundle.go.
ERROR: The file size is too big and should be excluded, its size is 2175478 (maximum allowed is 700000 bytes)

I am on Sonarqube Version 8.1. I am using sonar-scanner-4.3.0.2102 to do a scan. just a basic “sonar-scanner -Dsonar.projectBaseDir” command. nothing fancy in sonar-project.properties (list below). Any idea what might be causing this?

sonar.projectKey=
sonar.nodejs.executable=<node.exe>
sonar.java.binaries=<java/bin>
sonar.sourceEncoding=UTF-8
sonar.host.url=<host_url>
sonar.login=<sonar_api_token>
sonar.sources=.