diff --git a/proxy/inspect_container_interceptor.go b/proxy/inspect_container_interceptor.go
index f4d96903..590649d4 100644
--- a/proxy/inspect_container_interceptor.go
+++ b/proxy/inspect_container_interceptor.go
@@ -22,31 +22,9 @@ func (i *inspectContainerInterceptor) InterceptResponse(r *http.Response) error
 		return err
 	}
 
-	if err := updateContainerNetworkSettings(container, i.proxy); err != nil {
+	if err := i.proxy.updateContainerNetworkSettings(container); err != nil {
 		Log.Warningf("Inspecting container %s failed: %s", container["Id"], err)
 	}
 
 	return marshalResponseBody(r, container)
 }
-
-func updateContainerNetworkSettings(container jsonObject, proxy *Proxy) error {
-	containerID, err := container.String("Id")
-	if err != nil {
-		return err
-	}
-
-	proxy.waitForStartByIdent(containerID)
-	mac, ips, nets, err := weaveContainerIPs(containerID)
-	if err != nil || len(ips) == 0 {
-		return err
-	}
-
-	networkSettings, err := container.Object("NetworkSettings")
-	if err != nil {
-		return err
-	}
-	networkSettings["MacAddress"] = mac
-	networkSettings["IPAddress"] = ips[0].String()
-	networkSettings["IPPrefixLen"], _ = nets[0].Mask.Size()
-	return nil
-}
diff --git a/proxy/inspect_exec_interceptor.go b/proxy/inspect_exec_interceptor.go
index 339d3343..32e70940 100644
--- a/proxy/inspect_exec_interceptor.go
+++ b/proxy/inspect_exec_interceptor.go
@@ -27,7 +27,7 @@ func (i *inspectExecInterceptor) InterceptResponse(r *http.Response) error {
 		return err
 	}
 
-	if err := updateContainerNetworkSettings(container, i.proxy); err != nil {
+	if err := i.proxy.updateContainerNetworkSettings(container); err != nil {
 		Log.Warningf("Inspecting exec %s failed: %s", exec["Id"], err)
 	}
 
diff --git a/proxy/proxy.go b/proxy/proxy.go
index 749de0ea..3a410ea8 100644
--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -512,3 +512,25 @@ func (proxy *Proxy) getDNSDomain() (domain string) {
 
 	return string(b)
 }
+
+func (proxy *Proxy) updateContainerNetworkSettings(container jsonObject) error {
+	containerID, err := container.String("Id")
+	if err != nil {
+		return err
+	}
+
+	proxy.waitForStartByIdent(containerID)
+	mac, ips, nets, err := weaveContainerIPs(containerID)
+	if err != nil || len(ips) == 0 {
+		return err
+	}
+
+	networkSettings, err := container.Object("NetworkSettings")
+	if err != nil {
+		return err
+	}
+	networkSettings["MacAddress"] = mac
+	networkSettings["IPAddress"] = ips[0].String()
+	networkSettings["IPPrefixLen"], _ = nets[0].Mask.Size()
+	return nil
+}