diff --git a/src/vs/platform/markers/common/markerService.ts b/src/vs/platform/markers/common/markerService.ts
index 2e13f0ea987549635366a8f4a5479d0a39f707c0..c717861a514b33a6618fa0c8613e7728b79e29da 100644
--- a/src/vs/platform/markers/common/markerService.ts
+++ b/src/vs/platform/markers/common/markerService.ts
@@ -248,12 +248,12 @@ export class MarkerService implements IMarkerService {
 			errors: errors,
 			warnings: warnings,
 			infos: infos,
-			unknwons: unknwons
+			unknowns: unknwons
 		};
 	}
 
 	private _emptyStats(): MarkerStatistics {
-		return { errors: 0, warnings: 0, infos: 0, unknwons: 0 };
+		return { errors: 0, warnings: 0, infos: 0, unknowns: 0 };
 	}
 
 	private _updateStatsPlus(toAdd: MarkerStatistics): void;
@@ -266,7 +266,7 @@ export class MarkerService implements IMarkerService {
 		toUpdate.errors += toAdd.errors;
 		toUpdate.warnings += toAdd.warnings;
 		toUpdate.infos += toAdd.infos;
-		toUpdate.unknwons += toAdd.unknwons;
+		toUpdate.unknowns += toAdd.unknowns;
 	}
 
 	private _updateStatsMinus(toSubtract: MarkerStatistics): void;
@@ -279,7 +279,7 @@ export class MarkerService implements IMarkerService {
 		toUpdate.errors -= toSubtract.errors;
 		toUpdate.warnings -= toSubtract.warnings;
 		toUpdate.infos -= toSubtract.infos;
-		toUpdate.unknwons -= toSubtract.unknwons;
+		toUpdate.unknowns -= toSubtract.unknowns;
 	}
 
 	private _updateStatsMarker(toUpdate: MarkerStatistics, marker: IMarkerData): void {
@@ -294,7 +294,7 @@ export class MarkerService implements IMarkerService {
 				toUpdate.infos++;
 				break;
 			default:
-				toUpdate.unknwons++;
+				toUpdate.unknowns++;
 				break;
 		}
 	}
diff --git a/src/vs/platform/markers/common/markers.ts b/src/vs/platform/markers/common/markers.ts
index 0ef242407a7ad4111e4ae383c64572cb87d1f869..422a1525958151af7b7711d5494a4b84102f55a1 100644
--- a/src/vs/platform/markers/common/markers.ts
+++ b/src/vs/platform/markers/common/markers.ts
@@ -68,5 +68,5 @@ export interface MarkerStatistics {
 	errors: number;
 	warnings: number;
 	infos: number;
-	unknwons: number;
+	unknowns: number;
 }
diff --git a/src/vs/workbench/parts/markers/common/markersModel.ts b/src/vs/workbench/parts/markers/common/markersModel.ts
index 3fc1591a908560361a5a260ad908dfb801a1e5c2..1b7edefb8414a87b26ecf2440356df804cc2e0d3 100644
--- a/src/vs/workbench/parts/markers/common/markersModel.ts
+++ b/src/vs/workbench/parts/markers/common/markersModel.ts
@@ -263,7 +263,7 @@ export class MarkersModel {
 					return;
 			}
 		});
-		return {errors: errors, warnings: warnings, infos: infos, unknwons: unknowns};
+		return {errors, warnings, infos, unknowns};
 	}
 
 	public dispose() : void {
@@ -294,7 +294,7 @@ export class MarkersModel {
 		if (!onlyErrors) {
 			label= this.getLabel(label,  markerStatistics.warnings, Messages.MARKERS_PANEL_SINGLE_WARNING_LABEL, Messages.MARKERS_PANEL_MULTIPLE_WARNINGS_LABEL);
 			label= this.getLabel(label,  markerStatistics.infos, Messages.MARKERS_PANEL_SINGLE_INFO_LABEL, Messages.MARKERS_PANEL_MULTIPLE_INFOS_LABEL);
-			label= this.getLabel(label,  markerStatistics.unknwons, Messages.MARKERS_PANEL_SINGLE_UNKNOWN_LABEL, Messages.MARKERS_PANEL_MULTIPLE_UNKNOWNS_LABEL);
+			label= this.getLabel(label,  markerStatistics.unknowns, Messages.MARKERS_PANEL_SINGLE_UNKNOWN_LABEL, Messages.MARKERS_PANEL_MULTIPLE_UNKNOWNS_LABEL);
 		}
 		return label;
 	}