diff --git a/CHANGELOG.md b/CHANGELOG.md
index a1c2cd3a..7b3780d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ FlatLaf Change Log
 - Fixed selection background of checkbox in table cell.
 - Fixed color of links in HTML text.
 - Fixed jittery submenu rendering on Mac. (issue #10)
+- Fixed "cannot find symbol" error in NetBeans editor, when source/binary format
+  is set to JDK 9 (or later) in NetBeans project. (issue #13)
 - Button: Make button square if button text is "..." or a single character.
 - ComboBox: Fixed issues with NetBeans `org.openide.awt.ColorComboBox`
   component.
diff --git a/flatlaf-core/build.gradle.kts b/flatlaf-core/build.gradle.kts
index bb8ca379..749c21da 100644
--- a/flatlaf-core/build.gradle.kts
+++ b/flatlaf-core/build.gradle.kts
@@ -35,8 +35,8 @@ if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+	sourceCompatibility = JavaVersion.VERSION_1_8
+	targetCompatibility = JavaVersion.VERSION_1_8
 }
 
 tasks {
@@ -58,12 +58,7 @@ tasks {
 		archiveBaseName.set( "flatlaf" )
 
 		if( JavaVersion.current() >= JavaVersion.VERSION_1_9 ) {
-			manifest.attributes(
-				"Multi-Release" to "true"
-			)
-
-			into( "META-INF/versions/9" ) {
-				from( sourceSets["module-info"].output )
+			from( sourceSets["module-info"].output ) {
 				include( "module-info.class" )
 			}
 		}