diff --git a/build.gradle b/build.gradle
index 00afd9419e..6442429e58 100644
--- a/build.gradle
+++ b/build.gradle
@@ -94,7 +94,7 @@ subprojects {
     checkstyle {
         configFile = file("$rootDir/checkstyle.xml")
         toolVersion = "6.5"
-        ignoreFailures = true
+        ignoreFailures = false
         if (rootProject.hasProperty("checkstyle.ignoreFailures")) {
             ignoreFailures = rootProject.properties["checkstyle.ignoreFailures"].toBoolean()
         }