diff --git a/basicauth.c b/basicauth.c
index 8ab54b8..ea2b925 100644
--- a/basicauth.c
+++ b/basicauth.c
@@ -32,7 +32,7 @@
  * is stored in basicauth.
  */
 char *basicauth(char *user, char *pass) {
-	char b64str[80];   /* Buffer to hold the proxies basic authentication data */
+	char *b64str = malloc(80);
 
 	int len = strlen( user ) + strlen( pass ) + 2;
 	char *p = (char *) malloc( len );