Fixed definition of NULL

cofyc · Feb 24, 2021 · ac741e3 · ac741e3
1 parent 4d8872a
commit ac741e3
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/README.md b/README.md
@@ -42,6 +42,7 @@ Options and non-option arguments can clearly be separated using the `--` option.
 ## Examples
 
 ```c
+#include <stdio.h>
 #include "argparse.h"
 
 static const char *const usage[] = {