diff --git a/lib/rb/Makefile.am b/lib/rb/Makefile.am
index 0f10357..cad71be 100644
--- a/lib/rb/Makefile.am
+++ b/lib/rb/Makefile.am
@@ -31,7 +31,10 @@
 DESTDIR ?= /
 
 all-local:
-	$(RAKE) 
+if HAVE_BUNDLER
+	$(BUNDLER) install
+	$(BUNDLER) exec rake
+endif
 
 install-exec-hook:
 	$(RAKE) install