diff --git a/glm/gtx/dual_quaternion.inl b/glm/gtx/dual_quaternion.inl
index 58e00be5..4518df21 100644
--- a/glm/gtx/dual_quaternion.inl
+++ b/glm/gtx/dual_quaternion.inl
@@ -26,7 +26,7 @@ namespace glm
 
 #	if GLM_USE_DEFAULTED_FUNCTIONS == GLM_DISABLE
 		template<typename T, qualifier Q>
-		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 tdualquat<T, Q>::tdualquat()
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 tdualquat<T, Q>::tdualquat()
 #			if GLM_USE_DEFAULTED_FUNCTIONS != GLM_DISABLE
 			: real(tquat<T, Q>())
 			, dual(tquat<T, Q>(0, 0, 0, 0))