diff --git a/caplets/ap.cap b/caplets/ap.cap
new file mode 100644
index 00000000..7ff95390
--- /dev/null
+++ b/caplets/ap.cap
@@ -0,0 +1,17 @@
+set api.rest.username changeme 
+set api.rest.password changeme
+set api.rest.address 0.0.0.0
+
+set net.sniff.local true
+set net.sniff.verbose false
+set net.sniff.filter not arp and not udp port 53
+
+events.stream off
+events.clear 
+
+set events.stream.filter target.
+events.stream on
+
+net.recon on
+api.rest on
+net.sniff on
diff --git a/modules/api_rest.go b/modules/api_rest.go
index ca512505..83ca9c09 100644
--- a/modules/api_rest.go
+++ b/modules/api_rest.go
@@ -98,7 +98,7 @@ func (api *RestAPI) Configure() error {
 	var address string
 	var port int
 
-	if err, address = api.StringParam("api.rest.addr"); err != nil {
+	if err, address = api.StringParam("api.rest.address"); err != nil {
 		return err
 	} else if err, port = api.IntParam("api.rest.port"); err != nil {
 		return err
diff --git a/session/module.go b/session/module.go
index cc650c62..e05a7e0a 100644
--- a/session/module.go
+++ b/session/module.go
@@ -1,6 +1,9 @@
 package session
 
-import "sync"
+import (
+	"fmt"
+	"sync"
+)
 
 type Module interface {
 	Name() string
@@ -51,18 +54,27 @@ func (m *SessionModule) Param(name string) *ModuleParam {
 }
 
 func (m SessionModule) StringParam(name string) (error, string) {
-	if err, v := m.params[name].Get(m.Session); err != nil {
-		return err, ""
+	if p, found := m.params[name]; found == true {
+		if err, v := p.Get(m.Session); err != nil {
+			return err, ""
+		} else {
+			return nil, v.(string)
+		}
 	} else {
-		return nil, v.(string)
+		return fmt.Errorf("Parameter %s does not exist.", name), ""
 	}
 }
 
 func (m SessionModule) IntParam(name string) (error, int) {
-	if err, v := m.params[name].Get(m.Session); err != nil {
-		return err, 0
+	if p, found := m.params[name]; found == true {
+		if err, v := p.Get(m.Session); err != nil {
+			return err, 0
+		} else {
+			return nil, v.(int)
+		}
+
 	} else {
-		return nil, v.(int)
+		return fmt.Errorf("Parameter %s does not exist.", name), 0
 	}
 }