diff --git a/Makefile.cfg b/Makefile.cfg
index f4c5fb92b057e76e3c9037586036303d4ea450b7..017f9264721effdb2b8dd565785f0b92182f6825 100644
--- a/Makefile.cfg
+++ b/Makefile.cfg
@@ -67,7 +67,7 @@ JNI := yes
 
 # Path of the Java Developement Kit installation
 # (must be at least version  1.5.0_10)
-JDKDIR := /mnt/TTCN/Tools/jdk1.5.0_11
+JDKDIR := /usr/lib/jvm/default-java
 
 # Path of OpenSSL installation: (always required)
 OPENSSL_DIR := default