diff --git a/ccid/m4/.gitignore b/ccid/m4/.gitignore
new file mode 100644
index 0000000..5e7d273
--- /dev/null
+++ b/ccid/m4/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
diff --git a/npa/m4/.gitignore b/npa/m4/.gitignore
new file mode 100644
index 0000000..5e7d273
--- /dev/null
+++ b/npa/m4/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
diff --git a/pcsc-relay/m4/.gitignore b/pcsc-relay/m4/.gitignore
new file mode 100644
index 0000000..5e7d273
--- /dev/null
+++ b/pcsc-relay/m4/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
diff --git a/virtualsmartcard/m4/.gitignore b/virtualsmartcard/m4/.gitignore
new file mode 100644
index 0000000..5e7d273
--- /dev/null
+++ b/virtualsmartcard/m4/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore