diff --git a/colors/colors.test.ts b/colors/colors-test.ts
similarity index 100%
rename from colors/colors.test.ts
rename to colors/colors-test.ts
diff --git a/colors/colors.d.ts b/colors/colors.d.ts
index 99388e69d..c87112d7c 100644
--- a/colors/colors.d.ts
+++ b/colors/colors.d.ts
@@ -3,7 +3,7 @@
 // Definitions by: Bart van der Schoor <https://github.com/Bartvds>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
-declare interface String {
+interface String {
     bold:string;
     italic:string;
     underline:string;