diff --git a/application/src/main/resources/mapton.conf b/application/src/main/resources/mapton.conf
index dc30143..26913b0 100644
--- a/application/src/main/resources/mapton.conf
+++ b/application/src/main/resources/mapton.conf
@@ -37,7 +37,7 @@
 default_options="--branding mapton -J-Xss2m -J-Dnetbeans.logger.console=true -J--add-exports=javafx.graphics/com.sun.javafx.scene=ALL-UNNAMED -J--add-exports=javafx.graphics/com.sun.javafx.scene.traversal=ALL-UNNAMED -J--add-exports=javafx.graphics/com.sun.javafx.css=ALL-UNNAMED -J--add-exports=javafx.controls/com.sun.javafx.scene.control.behavior=ALL-UNNAMED -J--add-exports=javafx.controls/com.sun.javafx.scene.control=ALL-UNNAMED -J--add-exports=javafx.controls/com.sun.javafx.scene.control.inputmap=ALL-UNNAMED -J--add-exports=javafx.base/com.sun.javafx.event=ALL-UNNAMED -J--add-exports=javafx.base/com.sun.javafx.collections=ALL-UNNAMED -J--add-exports=javafx.base/com.sun.javafx.runtime=ALL-UNNAMED -J--add-exports=javafx.web/com.sun.webkit=ALL-UNNAMED -J--add-exports=javafx.graphics/com.sun.javafx.css=ALL-UNNAMED -J--add-opens=javafx.controls/javafx.scene.control.skin=ALL-UNNAMED"
 #default_options="--branding mapton --nosplash -J-Xss2m -J-Dnetbeans.logger.console=true -J-ea -J-Djdk.gtk.version=2.2 -J--add-exports=javafx.graphics/com.sun.javafx.scene=ALL-UNNAMED -J--add-exports=javafx.graphics/com.sun.javafx.scene.traversal=ALL-UNNAMED -J--add-exports=javafx.graphics/com.sun.javafx.css=ALL-UNNAMED -J--add-exports=javafx.controls/com.sun.javafx.scene.control.behavior=ALL-UNNAMED -J--add-exports=javafx.controls/com.sun.javafx.scene.control=ALL-UNNAMED -J--add-exports=javafx.controls/com.sun.javafx.scene.control.inputmap=ALL-UNNAMED -J--add-exports=javafx.base/com.sun.javafx.event=ALL-UNNAMED -J--add-exports=javafx.base/com.sun.javafx.collections=ALL-UNNAMED -J--add-exports=javafx.base/com.sun.javafx.runtime=ALL-UNNAMED -J--add-exports=javafx.web/com.sun.webkit=ALL-UNNAMED -J--add-exports=javafx.graphics/com.sun.javafx.css=ALL-UNNAMED -J--add-opens=javafx.controls/javafx.scene.control.skin=ALL-UNNAMED -J--add-opens=javafx.controls/javafx.scene.control=ALL-UNNAMED"
 # default location of JDK/JRE, can be overridden by using --jdkhome <dir> switch
-#jdkhome="/path/to/jdk"
+jdkhome="/usr/lib/jvm/java-11-openjdk"
 
 # clusters' paths separated by path.separator (semicolon on Windows, colon on Unices)
 #extra_clusters=