diff --git a/glm/core/setup.hpp b/glm/core/setup.hpp
index 011ed05c..c6fcd32f 100644
--- a/glm/core/setup.hpp
+++ b/glm/core/setup.hpp
@@ -387,7 +387,7 @@
 /////////////////
 // Build model //
 
-#if((defined(__WORDSIZE) && (__WORDSIZE == 64)) || defined(__arch64__) || defined(__LP64__) || defined(_M_X64) || defined(__ppc64__) || defined(__x86_64__))
+#if(defined(__arch64__) || defined(__LP64__) || defined(_M_X64) || defined(__ppc64__) || defined(__x86_64__))
 #		define GLM_MODEL	GLM_MODEL_64
 #elif(defined(__i386__) || defined(__ppc__))
 #	define GLM_MODEL	GLM_MODEL_32