diff --git a/frontend/src/app/aethel/aethel.component.ts b/frontend/src/app/aethel/aethel.component.ts
index 3c52df9..dc4466d 100644
--- a/frontend/src/app/aethel/aethel.component.ts
+++ b/frontend/src/app/aethel/aethel.component.ts
@@ -9,7 +9,7 @@ import {
     faChevronRight,
 } from "@fortawesome/free-solid-svg-icons";
 import { ActivatedRoute, Router } from "@angular/router";
-import { filterOutNonNull } from "../shared/operators/IsNonNull";
+import { isNonNull } from "../shared/operators/IsNonNull";
 
 @Component({
     selector: "pp-aethel",
@@ -56,7 +56,7 @@ export class AethelComponent implements OnInit {
         this.route.queryParams
             .pipe(
                 map((queryParams) => queryParams["query"]),
-                filterOutNonNull(),
+                isNonNull(),
                 distinctUntilChanged(),
                 takeUntilDestroyed(this.destroyRef),
             )
diff --git a/frontend/src/app/sample/sample.component.ts b/frontend/src/app/sample/sample.component.ts
index 4cba164..4d0a28a 100644
--- a/frontend/src/app/sample/sample.component.ts
+++ b/frontend/src/app/sample/sample.component.ts
@@ -3,7 +3,7 @@ import { ActivatedRoute, Router } from "@angular/router";
 import { AethelApiService } from "../shared/services/aethel-api.service";
 import { map } from "rxjs";
 import { LexicalPhrase } from "../shared/types";
-import { filterOutNonNull } from "../shared/operators/IsNonNull";
+import { isNonNull } from "../shared/operators/IsNonNull";
 
 @Component({
     selector: "pp-sample",
@@ -15,7 +15,7 @@ export class SampleComponent {
     private sample$ = this.apiService.sampleResult$(this.sampleName);
     public sampleResult$ = this.sample$.pipe(
         map((response) => response?.result),
-        filterOutNonNull()
+        isNonNull()
     );
 
     constructor(
diff --git a/frontend/src/app/shared/operators/IsNonNull.spec.ts b/frontend/src/app/shared/operators/IsNonNull.spec.ts
index 2385fb0..2105854 100644
--- a/frontend/src/app/shared/operators/IsNonNull.spec.ts
+++ b/frontend/src/app/shared/operators/IsNonNull.spec.ts
@@ -1,4 +1,4 @@
-import { filterOutNonNull } from "./IsNonNull";
+import { isNonNull } from "./IsNonNull";
 import { of } from "rxjs";
 
 interface TestInterface {
@@ -12,7 +12,7 @@ describe('isNonNull', () => {
         const source = of('hello', null, 123, undefined, true, testObject, testArray);
         const expected = ['hello', 123, true, testArray, testObject];
 
-        source.pipe(filterOutNonNull()).subscribe((value) => {
+        source.pipe(isNonNull()).subscribe((value) => {
             expect(expected.includes(value)).toBe(true);
         });
     });
@@ -23,7 +23,7 @@ describe('isNonNull', () => {
         }
         const input: TestInterface = { myTest: 'always succeeds' };
         const source = of(null, input, undefined);
-        source.pipe(filterOutNonNull()).subscribe((value) => {
+        source.pipe(isNonNull()).subscribe((value) => {
             // This should not compile if null/undefined are allowed to pass through.
             testFunction(value);
         });
diff --git a/frontend/src/app/shared/operators/IsNonNull.ts b/frontend/src/app/shared/operators/IsNonNull.ts
index 78073a2..d70ce87 100644
--- a/frontend/src/app/shared/operators/IsNonNull.ts
+++ b/frontend/src/app/shared/operators/IsNonNull.ts
@@ -6,7 +6,7 @@ import { Observable, filter } from "rxjs";
  * @returns An operator function that filters out null and undefined values.
  * @template T The type of values emitted by the observable.
  */
-export function filterOutNonNull<T>(): (source: Observable<T>) => Observable<NonNullable<T>> {
+export function isNonNull<T>(): (source: Observable<T>) => Observable<NonNullable<T>> {
     return function(source: Observable<T>): Observable<NonNullable<T>> {
         return source.pipe(
             filter((value: T): value is NonNullable<T> => value != null && value !== undefined)