diff --git a/build.gradle b/build.gradle
index 55dd98893d..465ffdcb8b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -240,6 +240,7 @@ task ktlintFormat(type: JavaExec, group: "formatting") {
     classpath = configurations.ktlint
     mainClass.set("com.pinterest.ktlint.Main")
     args "-F", "app/src/**/*.kt", "!**/build/**/*.kt", "--baseline=ktlint-baseline.xml"
+    jvmArgs("--add-opens", "java.base/java.lang=ALL-UNNAMED")
 }
 
 tasks.withType(io.gitlab.arturbosch.detekt.Detekt.class).configureEach {