diff --git a/src/vs/workbench/parts/terminal/electron-browser/terminalColorRegistry.ts b/src/vs/workbench/parts/terminal/electron-browser/terminalColorRegistry.ts
index 16d29e6bf4bf47f01f5d34e778369a598f2ba1d1..b0e8fc2ab439e6500544cf92fb9b54a153e932f3 100644
--- a/src/vs/workbench/parts/terminal/electron-browser/terminalColorRegistry.ts
+++ b/src/vs/workbench/parts/terminal/electron-browser/terminalColorRegistry.ts
@@ -147,7 +147,7 @@ const ansiColorMap = {
 export function registerColors(): void {
 	for (let id in ansiColorMap) {
 		let entry = ansiColorMap[id];
-		let colorName = id.substring(12);
+		let colorName = id.substring(13);
 		ansiColorIdentifiers[entry.index] = registerColor(id, entry.defaults, nls.localize('terminal.ansiColor', '\'{0}\' ansi color in the terminal.', colorName));
 	}
 }