diff --git a/make-includes/build_lecture_rules.make b/make-includes/build_lecture_rules.make
index 727b267..728581a 100644
--- a/make-includes/build_lecture_rules.make
+++ b/make-includes/build_lecture_rules.make
@@ -278,7 +278,7 @@
 	@$(ANNOUNCE) "Deploying files into $(INSTALL_DIRECTORY)"
 	@$(TEST) -d $(HANDBOOK_INSTALL_ROOT)
 	@$(MKDIR_P) $(INSTALL_DIRECTORY)
-	@$(foreach f,$(INSTALL_FILES),if $(TEST) ! -f $(INSTALL_DIRECTORY)/`$(BASENAME) $(f)` -o $(f) -nt $(INSTALL_DIRECTORY)/`$(BASENAME) $(f)`; then $(ECHO) "Deploying $(f)"; $(CP) $(f) $(INSTALL_DIRECTORY); fi;)
+	@$(RSYNC) -rltgoDv $(INSTALL_FILES) $(INSTALL_DIRECTORY)
 ifndef NOSYNC
 	@$(ANNOUNCE) "Synchronising with Blackboard"
 	@$(LOCKFILE) -r0 $(HOME)/.sitecopy/Blackboard$(PAPER_NUMBER).lock && $(SITECOPY) --update Blackboard$(PAPER_NUMBER) && $(RM) -f $(HOME)/.sitecopy/Blackboard$(PAPER_NUMBER).lock