diff --git a/TeX.gitignore b/TeX.gitignore
index 79a66f9..ff87d48 100644
--- a/TeX.gitignore
+++ b/TeX.gitignore
@@ -188,6 +188,9 @@ sympy-plots-for-*.tex/
 *.pytxcode
 pythontex-files-*/
 
+# tcolorbox
+*.listing
+
 # thmtools
 *.loe