diff --git a/src/templates/core/CancelablePromise.hbs b/src/templates/core/CancelablePromise.hbs
index 0480c9958..b7db949b8 100644
--- a/src/templates/core/CancelablePromise.hbs
+++ b/src/templates/core/CancelablePromise.hbs
@@ -49,7 +49,7 @@ export class CancelablePromise<T> implements Promise<T> {
 					return;
 				}
 				this.#isResolved = true;
-				this.#resolve?.(value);
+				if (this.#resolve) this.#resolve(value);
 			};
 
 			const onReject = (reason?: any): void => {
@@ -57,7 +57,7 @@ export class CancelablePromise<T> implements Promise<T> {
 					return;
 				}
 				this.#isRejected = true;
-				this.#reject?.(reason);
+				if (this.#reject) this.#reject(reason);
 			};
 
 			const onCancel = (cancelHandler: () => void): void => {
@@ -120,7 +120,7 @@ export class CancelablePromise<T> implements Promise<T> {
 			}
 		}
 		this.#cancelHandlers.length = 0;
-		this.#reject?.(new CancelError('Request aborted'));
+		if (this.#reject) this.#reject(new CancelError('Request aborted'));
 	}
 
 	public get isCancelled(): boolean {
diff --git a/test/__snapshots__/index.spec.ts.snap b/test/__snapshots__/index.spec.ts.snap
index bbfc95cad..859a7af84 100644
--- a/test/__snapshots__/index.spec.ts.snap
+++ b/test/__snapshots__/index.spec.ts.snap
@@ -119,7 +119,7 @@ export class CancelablePromise<T> implements Promise<T> {
                     return;
                 }
                 this.#isResolved = true;
-                this.#resolve?.(value);
+                if (this.#resolve) this.#resolve(value);
             };
 
             const onReject = (reason?: any): void => {
@@ -127,7 +127,7 @@ export class CancelablePromise<T> implements Promise<T> {
                     return;
                 }
                 this.#isRejected = true;
-                this.#reject?.(reason);
+                if (this.#reject) this.#reject(reason);
             };
 
             const onCancel = (cancelHandler: () => void): void => {
@@ -3345,7 +3345,7 @@ export class CancelablePromise<T> implements Promise<T> {
                     return;
                 }
                 this.#isResolved = true;
-                this.#resolve?.(value);
+                if (this.#resolve) this.#resolve(value);
             };
 
             const onReject = (reason?: any): void => {
@@ -3353,7 +3353,7 @@ export class CancelablePromise<T> implements Promise<T> {
                     return;
                 }
                 this.#isRejected = true;
-                this.#reject?.(reason);
+                if (this.#reject) this.#reject(reason);
             };
 
             const onCancel = (cancelHandler: () => void): void => {