diff --git a/glm/core/_detail.hpp b/glm/core/_detail.hpp
index 7cdc2ed0..16124b41 100644
--- a/glm/core/_detail.hpp
+++ b/glm/core/_detail.hpp
@@ -327,7 +327,7 @@ namespace detail
 #	define GLM_RESTRICT_VAR __restrict
 #elif((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC31))
 #	define GLM_DEPRECATED __attribute__((__deprecated__))
-#	define GLM_ALIGN(x) __attribute__((aligned(x))) 
+#	define GLM_ALIGN(x) __attribute__((aligned(x)))
 #	if(GLM_COMPILER >= GLM_COMPILER_GCC33)
 #		define GLM_RESTRICT __restrict__
 #		define GLM_RESTRICT_VAR __restrict__
diff --git a/glm/gtc/matrix_transform.inl b/glm/gtc/matrix_transform.inl
index b8e79ca2..b063c363 100644
--- a/glm/gtc/matrix_transform.inl
+++ b/glm/gtc/matrix_transform.inl
@@ -332,14 +332,14 @@ namespace matrix_transform
 		detail::tvec4<U> const & viewport
 	)
 	{
-		assert(delta.x > 0.0f && delta.y > 0.0f)
+		assert(delta.x > 0.0f && delta.y > 0.0f);
 		detail::tmat4x4<T> Result(1.0f);
 
 		if(!(delta.x > 0.0f && delta.y > 0.0f)) 
 			return Result; // Error
 
 		// Translate and scale the picked region to the entire window
-		Result = translate(Result, (T(viewport[2]) - T(2) * (x - T(viewport[0]))) / delta.x, (T(viewport[3]) - T(2) * (y - T(viewport[1]))) / delta.y, T(0));
+		Result = translate(Result, (T(viewport[2]) - T(2) * (center.x - T(viewport[0]))) / delta.x, (T(viewport[3]) - T(2) * (center.y - T(viewport[1]))) / delta.y, T(0));
 		return scale(Result, T(viewport[2]) / delta.x, T(viewport[3]) / delta.y, T(1));
 	}
 
diff --git a/glm/gtc/quaternion.inl b/glm/gtc/quaternion.inl
index 32577b77..2dbca071 100644
--- a/glm/gtc/quaternion.inl
+++ b/glm/gtc/quaternion.inl
@@ -403,7 +403,7 @@ namespace quaternion{
 		if(flip)
 			alpha = -alpha;
 		
-        return normalize(beta * x + alpha * y2);
+        return normalize(beta * x + alpha * y);
     }
 
     template <typename T>