diff --git a/src/vs/editor/common/editorCommon.ts b/src/vs/editor/common/editorCommon.ts
index e7e36871bf1..e5e5ef72371 100644
--- a/src/vs/editor/common/editorCommon.ts
+++ b/src/vs/editor/common/editorCommon.ts
@@ -926,6 +926,7 @@ export interface ITextModelWithMarkers extends ITextModel {
 
 /**
  * Describes the behaviour of decorations when typing/editing near their edges.
+ * Note: Please do not edit the values, as they very carefully match `DecorationRangeBehaviour`
  */
 export enum TrackedRangeStickiness {
 	AlwaysGrowsWhenTypingAtEdges = 0,
diff --git a/src/vs/monaco.d.ts b/src/vs/monaco.d.ts
index 7f3c80b83fa..2ae279bad8b 100644
--- a/src/vs/monaco.d.ts
+++ b/src/vs/monaco.d.ts
@@ -1639,6 +1639,7 @@ declare module monaco.editor {
 
 	/**
 	 * Describes the behaviour of decorations when typing/editing near their edges.
+	 * Note: Please do not edit the values, as they very carefully match `DecorationRangeBehaviour`
 	 */
 	export enum TrackedRangeStickiness {
 		AlwaysGrowsWhenTypingAtEdges = 0,
diff --git a/src/vs/vscode.d.ts b/src/vs/vscode.d.ts
index ca27a99e4ef..c83e51b96df 100644
--- a/src/vs/vscode.d.ts
+++ b/src/vs/vscode.d.ts
@@ -701,13 +701,25 @@ declare module 'vscode' {
 	}
 
 	/**
-	 * Describes the behaviour of decorations when typing/editing near their edges.
+	 * Describes the behaviour of decorations when typing/editing at their edges.
 	 */
-	export enum TrackedRangeStickiness {
-		AlwaysGrowsWhenTypingAtEdges = 0,
-		NeverGrowsWhenTypingAtEdges = 1,
-		GrowsOnlyWhenTypingBefore = 2,
-		GrowsOnlyWhenTypingAfter = 3
+	export enum DecorationRangeBehaviour {
+		/**
+		 * The decoration's range will widen when edits occur at the start or end.
+		 */
+		OpenOpen = 0,
+		/**
+		 * The decoration's range will not widen when edits occur at the start of end.
+		 */
+		ClosedClosed = 1,
+		/**
+		 * The decoration's range will widen when edits occur at the start, but not at the end.
+		 */
+		OpenClosed = 2,
+		/**
+		 * The decoration's range will widen when edits occur at the end, but not at the start.
+		 */
+		ClosedOpen = 3
 	}
 
 	/**
@@ -917,10 +929,10 @@ declare module 'vscode' {
 		isWholeLine?: boolean;
 
 		/**
-		 * Customize the growing behaviour of the decoration when typing at the edges of the decoration.
-		 * Defaults to TrackedRangeStickiness.AlwaysGrowsWhenTypingAtEdges
+		 * Customize the growing behaviour of the decoration when edits occur at the edges of the decoration's range.
+		 * Defaults to `DecorationRangeBehaviour.OpenOpen`.
 		 */
-		stickiness?: TrackedRangeStickiness;
+		rangeBehaviour?: DecorationRangeBehaviour;
 
 		/**
 		 * The position in the overview ruler where the decoration should be rendered.
diff --git a/src/vs/workbench/api/node/extHost.api.impl.ts b/src/vs/workbench/api/node/extHost.api.impl.ts
index 11fda78db64..1c7a6687056 100644
--- a/src/vs/workbench/api/node/extHost.api.impl.ts
+++ b/src/vs/workbench/api/node/extHost.api.impl.ts
@@ -529,7 +529,7 @@ export function createApiFactory(
 			TextEditorLineNumbersStyle: extHostTypes.TextEditorLineNumbersStyle,
 			TextEditorRevealType: extHostTypes.TextEditorRevealType,
 			TextEditorSelectionChangeKind: extHostTypes.TextEditorSelectionChangeKind,
-			TrackedRangeStickiness: EditorCommon.TrackedRangeStickiness,
+			DecorationRangeBehaviour: extHostTypes.DecorationRangeBehaviour,
 			Uri: URI,
 			ViewColumn: extHostTypes.ViewColumn,
 			WorkspaceEdit: extHostTypes.WorkspaceEdit,
diff --git a/src/vs/workbench/api/node/extHostTypes.ts b/src/vs/workbench/api/node/extHostTypes.ts
index 7548f24f051..2e90e54aba4 100644
--- a/src/vs/workbench/api/node/extHostTypes.ts
+++ b/src/vs/workbench/api/node/extHostTypes.ts
@@ -962,6 +962,28 @@ export enum TextEditorSelectionChangeKind {
 	Command = 3
 }
 
+/**
+ * These values match very carefully the values of `TrackedRangeStickiness`
+ */
+export enum DecorationRangeBehaviour {
+	/**
+	 * TrackedRangeStickiness.AlwaysGrowsWhenTypingAtEdges
+	 */
+	OpenOpen = 0,
+	/**
+	 * TrackedRangeStickiness.NeverGrowsWhenTypingAtEdges
+	 */
+	ClosedClosed = 1,
+	/**
+	 * TrackedRangeStickiness.GrowsOnlyWhenTypingBefore
+	 */
+	OpenClosed = 2,
+	/**
+	 * TrackedRangeStickiness.GrowsOnlyWhenTypingAfter
+	 */
+	ClosedOpen = 3
+}
+
 export namespace TextEditorSelectionChangeKind {
 	export function fromValue(s: string) {
 		switch (s) {