diff --git a/.gitignore b/.gitignore
index 2d02777469bc078715b29d519623fc155daf15ed..7e281c6a0d2282c37c1c2760556458635e338ea4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,6 +35,7 @@ Thumbs.db
 __pycache__
 .mypy_cache
 *.SYMDEF*
+a.out
 
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