diff --git a/glm/setup.hpp b/glm/setup.hpp
index 14a0966b..510fbebc 100644
--- a/glm/setup.hpp
+++ b/glm/setup.hpp
@@ -22,9 +22,9 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 // Compiler
 
-// User defines: GLM_FORCE_COMPILER_UNKNOWNED
+// User defines: GLM_FORCE_COMPILER_UNKNOWN
 
-#define GLM_COMPILER_UNKNOWNED		0x00000000
+#define GLM_COMPILER_UNKNOWN		0x00000000
 
 // Visual C++ defines
 #define GLM_COMPILER_VC				0x01000000
@@ -76,8 +76,8 @@
 #define GLM_COMPILER_CODEWARRIOR	0x04000000
 
 // Force generic C++ compiler
-#ifdef GLM_FORCE_COMPILER_UNKNOWNED
-#		define GLM_COMPILER GLM_COMPILER_UNKNOWNED
+#ifdef GLM_FORCE_COMPILER_UNKNOWN
+#		define GLM_COMPILER GLM_COMPILER_UNKNOWN
 // Visual C++
 #elif defined(_MSC_VER)
 #	if _MSC_VER == 900
@@ -157,7 +157,7 @@
 #	define GLM_COMPILER GLM_COMPILER_CODEWARRIOR
 
 #else
-#	define GLM_COMPILER GLM_COMPILER_UNKNOWNED
+#	define GLM_COMPILER GLM_COMPILER_UNKNOWN
 #endif
 
 #ifndef GLM_COMPILER
@@ -350,7 +350,7 @@
 #	elif(GLM_COMPONENT == GLM_COMPONENT_MS_EXT)
 #		pragma message("GLM: Multiple vector component names through Visual C++ language extensions")
 #	else
-#		error "GLM_COMPONENT value unknowned"
+#		error "GLM_COMPONENT value unknown"
 #	endif//GLM_MESSAGE_COMPONENT_DISPLAYED
 #endif//GLM_MESSAGE