diff --git a/sat/sat.d.ts b/sat/sat.d.ts
index 4e84ba47d..64021b589 100644
--- a/sat/sat.d.ts
+++ b/sat/sat.d.ts
@@ -1,6 +1,6 @@
 // Type definitions for sat.js
 // Project: https://github.com/jriecken/sat-js
-// Definitions by: Hou,Chunlei <https://github.com/omni360>
+// Definitions by: Hou Chunlei <https://github.com/omni360>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 declare module SAT {
@@ -139,4 +139,4 @@ declare module SAT {
 	 */
 	export function testPolygonPolygon(a: Polygon, b: Polygon, response?: Response): boolean;
 
-}
\ No newline at end of file
+}