diff --git a/glm/gtx/dual_quaternion.hpp b/glm/gtx/dual_quaternion.hpp
index 32c49dda..4228a499 100644
--- a/glm/gtx/dual_quaternion.hpp
+++ b/glm/gtx/dual_quaternion.hpp
@@ -88,7 +88,7 @@ namespace glm
 
 		// -- Explicit basic constructors --
 
-		GLM_FUNC_DECL GLM_CONSTEXPR explicit tdualquat(ctor);
+		GLM_FUNC_DECL GLM_CONSTEXPR_CTOR explicit tdualquat(ctor);
 		GLM_FUNC_DECL GLM_CONSTEXPR tdualquat(tquat<T, P> const & real);
 		GLM_FUNC_DECL GLM_CONSTEXPR tdualquat(tquat<T, P> const & orientation, tvec3<T, P> const & translation);
 		GLM_FUNC_DECL GLM_CONSTEXPR tdualquat(tquat<T, P> const & real, tquat<T, P> const & dual);
@@ -98,8 +98,8 @@ namespace glm
 		template <typename U, precision Q>
 		GLM_FUNC_DECL GLM_CONSTEXPR GLM_EXPLICIT tdualquat(tdualquat<U, Q> const & q);
 
-		GLM_FUNC_DECL GLM_CONSTEXPR GLM_EXPLICIT tdualquat(tmat2x4<T, P> const & holder_mat);
-		GLM_FUNC_DECL GLM_CONSTEXPR GLM_EXPLICIT tdualquat(tmat3x4<T, P> const & aug_mat);
+		GLM_FUNC_DECL GLM_EXPLICIT tdualquat(tmat2x4<T, P> const & holder_mat);
+		GLM_FUNC_DECL GLM_EXPLICIT tdualquat(tmat3x4<T, P> const & aug_mat);
 
 		// -- Unary arithmetic operators --
 
diff --git a/glm/gtx/dual_quaternion.inl b/glm/gtx/dual_quaternion.inl
index ea1e618f..29bf9e88 100644
--- a/glm/gtx/dual_quaternion.inl
+++ b/glm/gtx/dual_quaternion.inl
@@ -87,7 +87,7 @@ namespace glm
 	// -- Explicit basic constructors --
 
 	template <typename T, precision P>
-	GLM_FUNC_QUALIFIER GLM_CONSTEXPR tdualquat<T, P>::tdualquat(ctor)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CTOR tdualquat<T, P>::tdualquat(ctor)
 	{}
 
 	template <typename T, precision P>