diff --git a/lib/java/Makefile.am b/lib/java/Makefile.am
index b31b0cd..9b1e84d 100644
--- a/lib/java/Makefile.am
+++ b/lib/java/Makefile.am
@@ -4,7 +4,8 @@
 	$(ANT)
 
 install-exec-hook:
-	$(ANT) install -Dinstall.path=$(DESTDIR)$(JAVA_PREFIX)
+	$(ANT) install -Dinstall.path=$(DESTDIR)$(JAVA_PREFIX) \
+		-Dinstall.javadoc.path=$(DESTDIR)$(docdir)/java
 
 # Make sure this doesn't fail if ant is not configured.
 clean-local: