diff --git a/poi-ooxml/build.gradle b/poi-ooxml/build.gradle
index ba5c390283..41cdb86932 100644
--- a/poi-ooxml/build.gradle
+++ b/poi-ooxml/build.gradle
@@ -232,9 +232,7 @@ javadoc {
     failOnError = true
     doFirst {
         options {
-            if (JavaVersion.current().isJava9Compatible()) {
-                addBooleanOption('html5', true)
-            }
+            if (jdkVersion > 8) addBooleanOption('html5', true)
             links 'https://poi.apache.org/apidocs/dev/'
             links 'https://docs.oracle.com/javase/8/docs/api/'
             use = true