diff --git a/src/vs/editor/common/config/commonEditorConfig.ts b/src/vs/editor/common/config/commonEditorConfig.ts
index 10fd23bd6d6c7930240b99e9058a8107f178f752..20647dd28bab01adefe3918b2dd3708c9e2042a9 100644
--- a/src/vs/editor/common/config/commonEditorConfig.ts
+++ b/src/vs/editor/common/config/commonEditorConfig.ts
@@ -16,17 +16,7 @@ import * as editorCommon from 'vs/editor/common/editorCommon';
 import { EditorLayoutProvider } from 'vs/editor/common/viewLayout/editorLayoutProvider';
 import { ScrollbarVisibility } from 'vs/base/common/scrollable';
 import { FontInfo, BareFontInfo } from 'vs/editor/common/config/fontInfo';
-
-// TODO@Alex: investigate if it is better to stick to 31 bits (see smi = SMall Integer)
-// See https://thibaultlaurens.github.io/javascript/2013/04/29/how-the-v8-engine-works/#tagged-values
-/**
- * MAX_INT that fits in 32 bits
- */
-const MAX_SAFE_INT = 0x7fffffff;
-/**
- * MIN_INT that fits in 32 bits
- */
-const MIN_SAFE_INT = -0x80000000;
+import { Constants } from 'vs/editor/common/core/uint';
 
 export interface IEditorZoom {
 	onDidChangeZoomLevel: Event<number>;
@@ -408,7 +398,7 @@ function toFloat(source: any, defaultValue: number): number {
 	return r;
 }
 
-function toInteger(source: any, minimum: number = MIN_SAFE_INT, maximum: number = MAX_SAFE_INT): number {
+function toInteger(source: any, minimum: number = Constants.MIN_SAFE_SMALL_INTEGER, maximum: number = Constants.MAX_SAFE_SMALL_INTEGER): number {
 	let r = parseInt(source, 10);
 	if (isNaN(r)) {
 		r = 0;
diff --git a/src/vs/editor/common/core/uint.ts b/src/vs/editor/common/core/uint.ts
index 9f42eb3a22fb6c479f23fd151af009286dd2fa12..b68709f2ce2bad8ca273ea8c16f2c4ce98aa6276 100644
--- a/src/vs/editor/common/core/uint.ts
+++ b/src/vs/editor/common/core/uint.ts
@@ -35,9 +35,18 @@ export const enum Constants {
 	 * MAX SMI (SMall Integer) as defined in v8.
 	 * one bit is lost for boxing/unboxing flag.
 	 * one bit is lost for sign flag.
+	 * See https://thibaultlaurens.github.io/javascript/2013/04/29/how-the-v8-engine-works/#tagged-values
 	 */
 	MAX_SAFE_SMALL_INTEGER = 1 << 30,
 
+	/**
+	 * MIN SMI (SMall Integer) as defined in v8.
+	 * one bit is lost for boxing/unboxing flag.
+	 * one bit is lost for sign flag.
+	 * See https://thibaultlaurens.github.io/javascript/2013/04/29/how-the-v8-engine-works/#tagged-values
+	 */
+	MIN_SAFE_SMALL_INTEGER = -(1 << 30),
+
 	/**
 	 * Max unsigned integer that fits on 8 bits.
 	 */