diff --git a/src/ol/source/Vector.js b/src/ol/source/Vector.js
index eda2f79588..96440394a7 100644
--- a/src/ol/source/Vector.js
+++ b/src/ol/source/Vector.js
@@ -983,7 +983,7 @@ class VectorSource extends Source {
       }
     }
     this.loading =
-      this.loader_ === VOID ? false : this.loadingExtentsCount_ > 0;
+      this.loader_.length < 4 ? false : this.loadingExtentsCount_ > 0;
   }
 
   refresh() {
diff --git a/test/browser/spec/ol/map.test.js b/test/browser/spec/ol/map.test.js
index d6c9001cbe..a2865e572d 100644
--- a/test/browser/spec/ol/map.test.js
+++ b/test/browser/spec/ol/map.test.js
@@ -270,6 +270,13 @@ describe('ol.Map', function () {
               features: [new Feature(new Point([0, 0]))],
             }),
           }),
+          new VectorLayer({
+            source: new VectorSource({
+              loader: function (extent, resolution, projection) {
+                this.addFeature(new Feature(new Point([0, 0])));
+              },
+            }),
+          }),
         ],
       });
     });