diff --git a/angular-material/angular-material-0.9.0.d.ts b/angular-material/angular-material-0.9.0.d.ts
index 06c1ecf25f..1383b0beb5 100644
--- a/angular-material/angular-material-0.9.0.d.ts
+++ b/angular-material/angular-material-0.9.0.d.ts
@@ -150,8 +150,8 @@ declare module angular.material {
         A400?: string;
         A700?: string;
         contrastDefaultColor?: string;
-        contrastDarkColors?: string;
-        contrastStrongLightColors?: string;
+        contrastDarkColors?: string|string[];
+        contrastLightColors?: string|string[];
     }
 
     interface MDThemeHues {