diff --git a/glm/detail/setup.hpp b/glm/detail/setup.hpp
index f34832ba..87d2ffc9 100644
--- a/glm/detail/setup.hpp
+++ b/glm/detail/setup.hpp
@@ -119,7 +119,7 @@
 #		define GLM_LANG (GLM_LANG_CXX2A | GLM_LANG_EXT)
 #	elif __cplusplus == 201703L || GLM_LANG_PLATFORM == 201703L
 #		define GLM_LANG (GLM_LANG_CXX17 | GLM_LANG_EXT)
-#	elif __cplusplus == 201402L || GLM_LANG_PLATFORM == 201402L
+#	elif __cplusplus == 201402L || __cplusplus == 201500L || GLM_LANG_PLATFORM == 201402L
 #		define GLM_LANG (GLM_LANG_CXX14 | GLM_LANG_EXT)
 #	elif __cplusplus == 201103L || GLM_LANG_PLATFORM == 201103L
 #		define GLM_LANG (GLM_LANG_CXX11 | GLM_LANG_EXT)