diff --git a/lib/java/Makefile.am b/lib/java/Makefile.am
index e878ae9..45a88e2 100644
--- a/lib/java/Makefile.am
+++ b/lib/java/Makefile.am
@@ -4,7 +4,7 @@
 	$(ANT)
 
 install-exec-hook:
-	$(ANT) install
+	$(ANT) install -Dinstall.path=$(DESTDIR)$(JAVA_PREFIX)
 
 # Make sure this doesn't fail if ant is not configured.
 clean-local: