Oh yeah - I missed that.
I'm assuming you have a manual transmission, and that you have a leak in your clutch master cylinder or its line, maybe. The hydraulic clutch uses brake fluid to operate, and shares the same reservoir as the brake booster. Run a little search for "clutch master cylinder" and see if that helps you out.
2003 SVT #2370 • Hatch Nation #91 • 2000 Roush Cougar • 2008 Mustang Bullitt #5389 • 2013 Fiat 500 Abarth