diff --git a/code/C/.gitignore b/code/C/.gitignore
index 9daed3e..a1791d3 100644
--- a/code/C/.gitignore
+++ b/code/C/.gitignore
@@ -1,3 +1,4 @@
 fgets-simple
 demo-strtok
 packtest
+use_envp