diff --git a/glm/core/setup.hpp b/glm/core/setup.hpp
index 75837653..f0c9cc7a 100644
--- a/glm/core/setup.hpp
+++ b/glm/core/setup.hpp
@@ -171,6 +171,8 @@
 #define GLM_COMPILER_CLANG31		0x20000060
 #define GLM_COMPILER_CLANG32		0x20000070
 #define GLM_COMPILER_CLANG33		0x20000080
+#define GLM_COMPILER_CLANG40		0x20000090
+#define GLM_COMPILER_CLANG41		0x200000A0
 
 // LLVM GCC
 #define GLM_COMPILER_LLVM_GCC		0x40000000
diff --git a/test/core/core_setup_message.cpp b/test/core/core_setup_message.cpp
index c4cad6c0..463a2f9a 100644
--- a/test/core/core_setup_message.cpp
+++ b/test/core/core_setup_message.cpp
@@ -176,7 +176,7 @@ int test_compiler()
         case GLM_COMPILER_CLANG33:
             std::cout << "GLM_COMPILER_CLANG33" << std::endl;
             break;
-        case GLM_COMPILER_CLANG33:
+        case GLM_COMPILER_CLANG40:
             std::cout << "GLM_COMPILER_CLANG40" << std::endl;
             break;
 		default: