diff --git a/README.md b/README.md
index 7758c27..fe4821a 100644
--- a/README.md
+++ b/README.md
@@ -84,7 +84,7 @@ Vanity generation adress.
 
 #### Usage
 
-./vain privatekey.dat prefix <threads> <signature>
+./vain --usage
 
 #### Time to Generate on a 2.70GHz Processor
 | characters| time to generate (approx.) |
diff --git a/vanitygen.cpp b/vanitygen.cpp
index 330a4f3..0c1cb62 100644
--- a/vanitygen.cpp
+++ b/vanitygen.cpp
@@ -225,7 +225,7 @@ void usaging(void){
 	"--signature -s (signature type)\n"
 	"-o --output output file(default private.dat)\n"
 	"--usage usaging\n"
-	"--prefix -p\n"
+	//"--prefix -p\n"
 	"";
 	puts(help);
 }