diff --git a/config/RULES.Host b/config/RULES.Host
index a7171bc90..fa6c1b421 100644
--- a/config/RULES.Host
+++ b/config/RULES.Host
@@ -463,10 +463,12 @@ endif  #ifdef PROD
 #     Java classes and packages
 #
 
+ifdef JAVA
 DIRECTORY_TARGETS += $(INSTALL_JAVA)
 ifdef PACKAGE
 DIRECTORY_TARGETS += $(INSTALL_JAVA)/$(PACKAGE)
 endif
+endif
 
 vpath %.class $(INSTALL_JAVA)/$(PACKAGE)