diff --git a/glm/gtc/dual_quaternion.hpp b/glm/gtx/dual_quaternion.hpp
similarity index 94%
rename from glm/gtc/dual_quaternion.hpp
rename to glm/gtx/dual_quaternion.hpp
index 3f8c1e96..c4d7b267 100644
--- a/glm/gtc/dual_quaternion.hpp
+++ b/glm/gtx/dual_quaternion.hpp
@@ -20,9 +20,9 @@
 /// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 /// THE SOFTWARE.
 ///
-/// @ref gtc_dual_quaternion
-/// @file glm/gtc/dual_quaternion.hpp
-/// @date 2013-02-10 / 2013-02-13
+/// @ref gtx_dual_quaternion
+/// @file glm/gtx/dual_quaternion.hpp
+/// @date 2013-02-10 / 2013-02-20
 /// @author Maksim Vorobiev (msomeone@gmail.com)
 ///
 /// @see core (dependence)
@@ -30,16 +30,16 @@
 /// @see gtc_constants (dependence)
 /// @see gtc_quaternion (dependence)
 ///
-/// @defgroup gtc_dual_quaternion GLM_GTC_dual_quaternion
+/// @defgroup gtc_dual_quaternion GLM_GTX_dual_quaternion
 /// @ingroup gtc
 /// 
 /// @brief Defines a templated dual-quaternion type and several dual-quaternion operations.
 /// 
-/// <glm/gtc/dual_quaternion.hpp> need to be included to use these functionalities.
+/// <glm/gtx/dual_quaternion.hpp> need to be included to use these functionalities.
 ///////////////////////////////////////////////////////////////////////////////////
 
-#ifndef GLM_GTC_dual_quaternion
-#define GLM_GTC_dual_quaternion GLM_VERSION
+#ifndef GLM_GTX_dual_quaternion
+#define GLM_GTX_dual_quaternion GLM_VERSION
 
 // Dependency:
 #include "../glm.hpp"
@@ -48,7 +48,7 @@
 #include "../gtc/quaternion.hpp"
 
 #if(defined(GLM_MESSAGES) && !defined(glm_ext))
-#	pragma message("GLM: GLM_GTC_dual_quaternion extension included")
+#	pragma message("GLM: GLM_GTX_dual_quaternion extension included")
 #endif
 
 namespace glm{
@@ -239,4 +239,4 @@ namespace detail
 
 #include "dual_quaternion.inl"
 
-#endif//GLM_GTC_dual_quaternion
+#endif//GLM_GTX_dual_quaternion
diff --git a/glm/gtc/dual_quaternion.inl b/glm/gtx/dual_quaternion.inl
similarity index 99%
rename from glm/gtc/dual_quaternion.inl
rename to glm/gtx/dual_quaternion.inl
index 03d58a53..65a76401 100644
--- a/glm/gtc/dual_quaternion.inl
+++ b/glm/gtx/dual_quaternion.inl
@@ -20,8 +20,8 @@
 /// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 /// THE SOFTWARE.
 ///
-/// @ref gtc_quaternion
-/// @file glm/gtc/quaternion.inl
+/// @ref gtx_quaternion
+/// @file glm/gtx/quaternion.inl
 /// @date 2013-02-10 / 2013-02-13
 /// @author Maksim Vorobiev (msomeone@gmail.com)
 ///////////////////////////////////////////////////////////////////////////////////
diff --git a/test/gtc/CMakeLists.txt b/test/gtc/CMakeLists.txt
index 2ba9f3ca..273341a8 100644
--- a/test/gtc/CMakeLists.txt
+++ b/test/gtc/CMakeLists.txt
@@ -7,7 +7,6 @@ glmCreateTestGTC(gtc_matrix_inverse)
 glmCreateTestGTC(gtc_matrix_transform)
 glmCreateTestGTC(gtc_noise)
 glmCreateTestGTC(gtc_quaternion)
-glmCreateTestGTC(gtc_dual_quaternion)
 glmCreateTestGTC(gtc_random)
 glmCreateTestGTC(gtc_reciprocal)
 glmCreateTestGTC(gtc_swizzle)
diff --git a/test/gtx/CMakeLists.txt b/test/gtx/CMakeLists.txt
index 1beed4d3..e268abc4 100644
--- a/test/gtx/CMakeLists.txt
+++ b/test/gtx/CMakeLists.txt
@@ -5,6 +5,7 @@ glmCreateTestGTC(gtx_matrix_interpolation)
 glmCreateTestGTC(gtx_matrix_query)
 glmCreateTestGTC(gtx_multiple)
 glmCreateTestGTC(gtx_quaternion)
+glmCreateTestGTC(gtx_dual_quaternion)
 glmCreateTestGTC(gtx_rotate_normalized_axis)
 glmCreateTestGTC(gtx_rotate_vector)
 glmCreateTestGTC(gtx_scalar_relational)
diff --git a/test/gtc/gtc_dual_quaternion.cpp b/test/gtx/gtx_dual_quaternion.cpp
similarity index 99%
rename from test/gtc/gtc_dual_quaternion.cpp
rename to test/gtx/gtx_dual_quaternion.cpp
index 8aef1fb2..ed716334 100644
--- a/test/gtc/gtc_dual_quaternion.cpp
+++ b/test/gtx/gtx_dual_quaternion.cpp
@@ -8,7 +8,7 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 #include <glm/glm.hpp>
-#include <glm/gtc/dual_quaternion.hpp>
+#include <glm/gtx/dual_quaternion.hpp>
 #include <glm/gtc/matrix_transform.hpp>
 #include <glm/gtc/epsilon.hpp>
 #include <glm/gtx/euler_angles.hpp>