diff --git a/glm/detail/type_vec1.hpp b/glm/detail/type_vec1.hpp
index f5c7f017..69c7274a 100644
--- a/glm/detail/type_vec1.hpp
+++ b/glm/detail/type_vec1.hpp
@@ -39,6 +39,10 @@ namespace glm
 #				pragma clang diagnostic push
 #				pragma clang diagnostic ignored "-Wgnu-anonymous-struct"
 #				pragma clang diagnostic ignored "-Wnested-anon-types"
+#			endif
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(push)
+#				pragma warning(disable: 4201)
 #			endif
 		
 			union
@@ -60,6 +64,9 @@ namespace glm
 #				endif//GLM_SWIZZLE*/
 			};
 		
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(pop)
+#			endif
 #			if GLM_COMPILER & GLM_COMPILER_CLANG
 #				pragma clang diagnostic pop
 #			endif
diff --git a/glm/detail/type_vec2.hpp b/glm/detail/type_vec2.hpp
index a9af32e3..b8b8f32e 100644
--- a/glm/detail/type_vec2.hpp
+++ b/glm/detail/type_vec2.hpp
@@ -38,6 +38,10 @@ namespace glm
 #				pragma clang diagnostic push
 #				pragma clang diagnostic ignored "-Wgnu-anonymous-struct"
 #				pragma clang diagnostic ignored "-Wnested-anon-types"
+#			endif
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(push)
+#				pragma warning(disable: 4201)
 #			endif
 		
 			union
@@ -60,6 +64,9 @@ namespace glm
 
 			};
 		
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(pop)
+#			endif
 #			if GLM_COMPILER & GLM_COMPILER_CLANG
 #				pragma clang diagnostic pop
 #			endif
diff --git a/glm/detail/type_vec3.hpp b/glm/detail/type_vec3.hpp
index f85f0a5c..28e6c6ed 100644
--- a/glm/detail/type_vec3.hpp
+++ b/glm/detail/type_vec3.hpp
@@ -38,6 +38,10 @@ namespace glm
 #				pragma clang diagnostic push
 #				pragma clang diagnostic ignored "-Wgnu-anonymous-struct"
 #				pragma clang diagnostic ignored "-Wnested-anon-types"
+#			endif
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(push)
+#				pragma warning(disable: 4201)
 #			endif
 
 			union
@@ -59,6 +63,9 @@ namespace glm
 #				endif//GLM_SWIZZLE
 			};
 		
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(pop)
+#			endif
 #			if GLM_COMPILER & GLM_COMPILER_CLANG
 #				pragma clang diagnostic pop
 #			endif
diff --git a/glm/detail/type_vec4.hpp b/glm/detail/type_vec4.hpp
index 5e89b744..0a16bc2c 100644
--- a/glm/detail/type_vec4.hpp
+++ b/glm/detail/type_vec4.hpp
@@ -38,6 +38,10 @@ namespace glm
 #				pragma clang diagnostic push
 #				pragma clang diagnostic ignored "-Wgnu-anonymous-struct"
 #				pragma clang diagnostic ignored "-Wnested-anon-types"
+#			endif
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(push)
+#				pragma warning(disable: 4201)
 #			endif
 
 			union
@@ -61,6 +65,9 @@ namespace glm
 #				endif//GLM_SWIZZLE
 			};
 
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(pop)
+#			endif
 #			if GLM_COMPILER & GLM_COMPILER_CLANG
 #				pragma clang diagnostic pop
 #			endif
diff --git a/glm/gtc/quaternion.hpp b/glm/gtc/quaternion.hpp
index 8af1c8bf..ff8c4aa6 100644
--- a/glm/gtc/quaternion.hpp
+++ b/glm/gtc/quaternion.hpp
@@ -49,6 +49,10 @@ namespace glm
 #				pragma clang diagnostic push
 #				pragma clang diagnostic ignored "-Wgnu-anonymous-struct"
 #				pragma clang diagnostic ignored "-Wnested-anon-types"
+#			endif
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(push)
+#				pragma warning(disable: 4201)
 #			endif
 		
 			union
@@ -57,6 +61,9 @@ namespace glm
 				typename detail::storage<T, sizeof(T) * 4, detail::is_aligned<P>::value>::type data;
 			};
 		
+#			if GLM_COMPILER & GLM_COMPILER_VC
+#				pragma warning(pop)
+#			endif
 #			if GLM_COMPILER & GLM_COMPILER_CLANG
 #				pragma clang diagnostic pop
 #			endif
-- 
2.15.1.windows.2