diff --git a/src/beast/.gitignore b/src/beast/.gitignore
index d5acdb615..1a834f299 100644
--- a/src/beast/.gitignore
+++ b/src/beast/.gitignore
@@ -24,3 +24,5 @@ contents.xcworkspacedata
 profile
 Builds/VisualStudio2012/Debug
 Builds/VisualStudio2012/Release
+
+modules/beast_cryptopp