diff --git a/.gitignore b/.gitignore
index af947b8..9e2042e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@ src/C++/Driver/vgcore.42436
 src/C++/Driver/vgcore.42611
 src/Socket/a.out
 src/C++/Driver/cmake_install.cmake
+src/C++/Socket/a.out