diff --git a/gradle/java-module.gradle b/gradle/java-module.gradle
index b6fc081944..97fd927f99 100644
--- a/gradle/java-module.gradle
+++ b/gradle/java-module.gradle
@@ -474,6 +474,7 @@ spotless {
 	java {
 		licenseHeaderFile rootProject.file('spotless.license.java')
 		removeUnusedImports()
+		indentWithTabs(4)
 		trimTrailingWhitespace()
 		endWithNewline()
 	}