diff --git a/gradle/checkstyle.xml b/gradle/checkstyle.xml
index d85100471..f84df396d 100644
--- a/gradle/checkstyle.xml
+++ b/gradle/checkstyle.xml
@@ -5,6 +5,8 @@
 
 <module name="Checker">
 
+    <suppress files="[\\/]protobuf[\\/]" checks="[a-zA-Z0-9]*" />
+
     <!--<property name="fileExtensions" value="java, properties, xml"/>-->
 
     <!-- Checks whether files end with a new line.                        -->