diff --git a/.gitignore b/.gitignore
index 1ec01af..f1295ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
-concurrency/flags/img/
+concurrency/flags/img/*.gif
 
 # Byte-compiled / optimized / DLL files
 __pycache__/
diff --git a/concurrency/flags/img/README.txt b/concurrency/flags/img/README.txt
new file mode 100644
index 0000000..b5df333
--- /dev/null
+++ b/concurrency/flags/img/README.txt
@@ -0,0 +1 @@
+This file exists so that the directory is stored by git.