diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4f1a22a..b350064 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,12 +9,20 @@ set(QREDIS_MINOR 1)
 set(QREDIS_PATCH 0)
 set(QREDIS_VERSION "${QREDIS_MAJOR}.${QREDIS_MINOR}.${QREDIS_PATCH}")
 
+# C++11 support must be enabled in GCC.
+if(CMAKE_COMPILER_IS_GNUCXX)
+    # Ensure that we are using at least GCC 4.6+.
+    if(${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4.6)
+        message(FATAL_ERROR "GCC 4.6+ is required (" ${CMAKE_CXX_COMPILER_VERSION} " detected).")
+    endif()
+    # Enable C++11 features.
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
+endif()
+
 # The QtCore and QtNetwork libraries are both required.
 find_package(Qt5Core    REQUIRED)
 find_package(Qt5Network REQUIRED)
 
-# TODO: enable C++11 compiler support
-
 # Specify where QRedis includes are located.
 include_directories(include)
 
diff --git a/src/client.cpp b/src/client.cpp
index 566295e..74f9955 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -6,8 +6,8 @@ using namespace QRedis;
 Client::Client()
     : d(new ClientPrivate)
 {
-    connect(d->socket, &QTcpSocket::connected,    this, &Client::connected);
-    connect(d->socket, &QTcpSocket::disconnected, this, &Client::disconnected);
+    connect(&d->socket, &QTcpSocket::connected,    this, &Client::connected);
+    connect(&d->socket, &QTcpSocket::disconnected, this, &Client::disconnected);
 }
 
 Client::~Client()