diff --git a/RubyMotion.gitignore b/RubyMotion.gitignore
index e6b56b0d..7e395179 100644
--- a/RubyMotion.gitignore
+++ b/RubyMotion.gitignore
@@ -1,5 +1,6 @@
+.dat*
 .repl_history
-build
+build/
 tags
 
 # Editor files