diff --git a/.gitignore b/.gitignore
index d5acdb6154..1a834f299e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,5 @@ contents.xcworkspacedata
 profile
 Builds/VisualStudio2012/Debug
 Builds/VisualStudio2012/Release
+
+modules/beast_cryptopp