diff --git a/bin/cowrie b/bin/cowrie
index c3e594d..2c393fa 100755
--- a/bin/cowrie
+++ b/bin/cowrie
@@ -15,7 +15,7 @@ find_cowrie_directory() {
     else
         COWRIEDIR=$(dirname $PWD/$0)/..
     fi
-    COWRIEDIR=$(cd ${COWRIEDIR} && pwd -P 2>/dev/null | pwd)
+    COWRIEDIR=$(cd ${COWRIEDIR} && pwd -P 2>/dev/null || pwd)
 }
 
 activate_venv() {
diff --git a/doc/sql/mysql.sql b/doc/sql/mysql.sql
index 94348ea..3ca9d12 100644
--- a/doc/sql/mysql.sql
+++ b/doc/sql/mysql.sql
@@ -27,7 +27,7 @@ CREATE TABLE IF NOT EXISTS `input` (
 
 CREATE TABLE IF NOT EXISTS `sensors` (
   `id` int(11) NOT NULL auto_increment,
-  `ip` varchar(15) NOT NULL,
+  `ip` varchar(255) NOT NULL,
   PRIMARY KEY  (`id`)
 ) ;
 
diff --git a/doc/sql/update11.sql b/doc/sql/update11.sql
new file mode 100644
index 0000000..e1c2bff
--- /dev/null
+++ b/doc/sql/update11.sql
@@ -0,0 +1 @@
+ALTER TABLE sensors MODIFY ip VARCHAR(255) NOT NULL;