diff --git a/README.md b/README.md
index 687adf5..7b34d52 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,13 @@ The HTML comes with no styling. If you want to apply a CSS to it, you can provid
 
 This will basically add a `<style>` element with the contents of the `style.css` file before the normal HTML output.
 
+### --prefix
+By the fault, all of the HTML class names are prefixed with `c2h-` to avoid namespace collisions. You can change the prefix using the `--prefix` option, like this:
+```sh
+./c2html --input file.c --output file.html --prefix myprefix-
+```
+in which case, identifiers will be generated with the `myprefix-identifier` class name instead of the usual `c2h-identifier`.
+
 ## Using the library
 The library only exports one function
 ```c
diff --git a/example.c b/example.c
deleted file mode 100644
index 6fb86be..0000000
--- a/example.c
+++ /dev/null
@@ -1,32 +0,0 @@
-// Build with: gcc example.c c2html.c -o example -Wall -Wextra
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include "c2html.h"
-
-int main()
-{
-    // Table mode refers to the structure of the output HTML.
-    // If table_mode is turned off, then the output lines are
-    // separated by <br /> tags and there are no line numbers.
-    // Using table mode, then the lines are represented as rows
-    // of an HTML. The table has a first column with the line
-    // numbers and the second with their content.
-    _Bool table_mode = 0;
-    const char *prefix = NULL;
-
-    char *c = 
-      "int main() {\n"
-      "  int a = 5;\n"
-      "  return 0;\n"
-      "}\n";
-
-    char *html = c2html(c, strlen(c), table_mode, prefix, NULL);
-
-    /* .. check for errors .. */
-    
-    printf("%s\n", html);
-    
-    free(html);
-    return 0;
-}