diff --git a/projects/ui/src/lib/components/po-field/po-input/po-mask.spec.ts b/projects/ui/src/lib/components/po-field/po-input/po-mask.spec.ts
index 386c7b7eea..b334961db1 100644
--- a/projects/ui/src/lib/components/po-field/po-input/po-mask.spec.ts
+++ b/projects/ui/src/lib/components/po-field/po-input/po-mask.spec.ts
@@ -473,6 +473,40 @@ describe('PoMask', () => {
     expect(fakeThis.finalPosition).toBe(fakeThis.initialPosition);
   });
 
+  it('resetPositions: should not call the function if the event does not have setSelectionRange', () => {
+    const mockEvent = {
+      target: {}
+    };
+
+    const fakeThis = mask;
+
+    expect(() => fakeThis.setPositions(mockEvent)).not.toThrow();
+  });
+
+  it('setSelectionRange: should not call the function if the event does not have setSelectionRange', () => {
+    const mockEvent = {
+      target: {}
+    };
+
+    const fakeThis = mask;
+    fakeThis.initialPosition = 2;
+    fakeThis.finalPosition = 1;
+
+    expect(() => fakeThis.setSelectionRange(mockEvent)).not.toThrow();
+  });
+
+  it('setSelectionRange: should not call the function if the event does not have setSelectionRange and final is larger than initial', () => {
+    const mockEvent = {
+      target: {}
+    };
+
+    const fakeThis = mask;
+    fakeThis.initialPosition = 1;
+    fakeThis.finalPosition = 2;
+
+    expect(() => fakeThis.setSelectionRange(mockEvent)).not.toThrow();
+  });
+
   it('should change the positions with a defined value', () => {
     const fakeThis = mask;
     fakeThis.initialPosition = 3;
diff --git a/projects/ui/src/lib/components/po-field/po-input/po-mask.ts b/projects/ui/src/lib/components/po-field/po-input/po-mask.ts
index 120f493279..77e1c8c520 100644
--- a/projects/ui/src/lib/components/po-field/po-input/po-mask.ts
+++ b/projects/ui/src/lib/components/po-field/po-input/po-mask.ts
@@ -100,9 +100,9 @@ export class PoMask {
 
   setSelectionRange($event: any) {
     if (this.initialPosition > this.finalPosition) {
-      $event.target.setSelectionRange(this.finalPosition, this.initialPosition);
+      $event.target.setSelectionRange?.(this.finalPosition, this.initialPosition);
     } else {
-      $event.target.setSelectionRange(this.initialPosition, this.finalPosition);
+      $event.target.setSelectionRange?.(this.initialPosition, this.finalPosition);
     }
   }
 
@@ -237,7 +237,7 @@ export class PoMask {
 
   // posiciona o cursor de acordo com o controle de posição
   setPositions($event: any) {
-    $event.target.setSelectionRange(this.initialPosition, this.finalPosition);
+    $event.target.setSelectionRange?.(this.initialPosition, this.finalPosition);
   }
 
   // muda a posição do cursor e atualiza o controle de posição