diff --git a/.gitignore b/.gitignore
index 00656c4449..894d27d8c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,6 +62,9 @@ build/
 [Ll]ogs/
 out/
 
+# Builds may generate a CCache directory.
+ccache/
+
 # Visual Studio 2015/2017 cache/options directory
 .vs/
 # Uncomment if you have tasks that create the project's static files in wwwroot