diff --git a/filesystem.go b/filesystem.go
index 728827a..2355d6f 100644
--- a/filesystem.go
+++ b/filesystem.go
@@ -27,7 +27,7 @@ func NewFilesystem(args []string) (procPtr *Filesystem, err error) {
 		// TODO: add error checking
 		size, _ := strconv.Atoi(args[1])
 		used, _ := strconv.Atoi(args[2])
-		available, _ := strconv.Atoi(args[2])
+		available, _ := strconv.Atoi(args[3])
 		procPtr = &Filesystem{
 			args[0], size, used, available, args[4]}
 	}