diff --git a/glm/detail/setup.hpp b/glm/detail/setup.hpp
index e2c4c4e1..1e4520ef 100644
--- a/glm/detail/setup.hpp
+++ b/glm/detail/setup.hpp
@@ -305,6 +305,7 @@
 # 	define GLM_IF_CONSTEXPR if constexpr
 # else
 # 	define GLM_IF_CONSTEXPR if
+# endif
 #endif
 
 //