diff --git a/src/lib/viewers/BaseViewer.js b/src/lib/viewers/BaseViewer.js
index f5271817a..00b5e6bf7 100644
--- a/src/lib/viewers/BaseViewer.js
+++ b/src/lib/viewers/BaseViewer.js
@@ -587,6 +587,9 @@ class BaseViewer extends EventEmitter {
 
         if (this.annotator && this.areNewAnnotationsEnabled()) {
             this.annotator.emit(ANNOTATOR_EVENT.setVisibility, true);
+            if (this.options.enableAnnotationsDiscoverability) {
+                this.annotator.toggleAnnotationMode(AnnotationMode.REGION);
+            }
             this.enableAnnotationControls();
         }
     }
diff --git a/src/lib/viewers/__tests__/BaseViewer-test.js b/src/lib/viewers/__tests__/BaseViewer-test.js
index 536ecd163..ab8faddda 100644
--- a/src/lib/viewers/__tests__/BaseViewer-test.js
+++ b/src/lib/viewers/__tests__/BaseViewer-test.js
@@ -583,6 +583,25 @@ describe('lib/viewers/BaseViewer', () => {
             expect(base.annotator.emit).to.be.calledWith(ANNOTATOR_EVENT.setVisibility, true);
             expect(base.enableAnnotationControls).to.be.called;
         });
+
+        it(`should show annotations and toggle annotations mode to REGION if enableAnnotationsDiscoverability is true`, () => {
+            sandbox.stub(base, 'areNewAnnotationsEnabled').returns(true);
+            sandbox.stub(base, 'enableAnnotationControls');
+            base.annotator = {
+                emit: sandbox.mock(),
+                toggleAnnotationMode: sandbox.mock(),
+            };
+            base.annotationControls = {
+                destroy: sandbox.mock(),
+            };
+            base.options.enableAnnotationsDiscoverability = true;
+
+            base.handleFullscreenExit();
+
+            expect(base.annotator.emit).to.be.calledWith(ANNOTATOR_EVENT.setVisibility, true);
+            expect(base.enableAnnotationControls).to.be.called;
+            expect(base.annotator.toggleAnnotationMode).to.be.calledWith(AnnotationMode.REGION);
+        });
     });
 
     describe('resize()', () => {