diff --git a/distrib/distrib.cc b/distrib/distrib.cc
index b81bfc7..3b9b8ab 100644
--- a/distrib/distrib.cc
+++ b/distrib/distrib.cc
@@ -27,6 +27,13 @@ distrib::distrib()
     m_data = NULL;
     m_server = true;
     m_next_task = 0;
+    m_client_socket = -1;
+}
+
+distrib::~distrib()
+{
+    if (m_client_socket != -1)
+        close(m_client_socket);
 }
 
 int distrib::readHostFile(const char * filename)
diff --git a/distrib/distrib.h b/distrib/distrib.h
index eabf9c9..3afbea2 100644
--- a/distrib/distrib.h
+++ b/distrib/distrib.h
@@ -13,6 +13,7 @@ class distrib
 {
     public:
         distrib();
+        ~distrib();
         int readHostFile(const char * filename);
         int startServer();
         int startClient(const char * server, int port);
diff --git a/main/Scene.cc b/main/Scene.cc
index 6f7b270..0d0dc11 100644
--- a/main/Scene.cc
+++ b/main/Scene.cc
@@ -425,7 +425,7 @@ Color Scene::calculateLightContribution(const Ray & toLight,
         contrib *= hit.shape->getMaterial()->getTransparency();
         contrib *= hit.shape->getMaterial()->getDiffuseColor();
 
-        if (    contrib.r < SCENE_FACTOR_THRESHOLD 
+        if (    contrib.r < SCENE_FACTOR_THRESHOLD
              && contrib.g < SCENE_FACTOR_THRESHOLD
              && contrib.b < SCENE_FACTOR_THRESHOLD )
             break;