diff --git a/bin/ex/ex.c b/bin/ex/ex.c
new file mode 100644
index 0000000..f631087
--- /dev/null
+++ b/bin/ex/ex.c
@@ -0,0 +1,8 @@
+#include <unistd.h>
+
+int main(int argc, char **argv)
+{
+	write(STDERR_FILENO, "usage: ex\n", 10);
+	return 0;
+}
+
diff --git a/bin/ex/makefile b/bin/ex/makefile
new file mode 100644
index 0000000..85e5af6
--- /dev/null
+++ b/bin/ex/makefile
@@ -0,0 +1,4 @@
+BIN := ex
+SRC := ex.c
+
+include ../../config