diff --git a/frontend/src/modelTypes/ISavedFilter.ts b/frontend/src/modelTypes/ISavedFilter.ts
index f4f75f31d..dd8854535 100644
--- a/frontend/src/modelTypes/ISavedFilter.ts
+++ b/frontend/src/modelTypes/ISavedFilter.ts
@@ -1,11 +1,12 @@
 import type {IAbstract} from './IAbstract'
 import type {IUser} from './IUser'
 
+// FIXME: what makes this different from TaskFilterParams?
 interface Filters {
-	sortBy: ('start_date' | 'done' | 'id' | 'position')[],
-	orderBy: ('asc' | 'desc')[],
+	sort_by: ('start_date' | 'done' | 'id' | 'position')[],
+	order_by: ('asc' | 'desc')[],
 	filter: string,
-	filterIncludeNulls: boolean,
+	filter_include_nulls: boolean,
 	s: string,
 }
 
diff --git a/frontend/src/models/savedFilter.ts b/frontend/src/models/savedFilter.ts
index 8b8b74b48..aec11ec33 100644
--- a/frontend/src/models/savedFilter.ts
+++ b/frontend/src/models/savedFilter.ts
@@ -1,3 +1,4 @@
+import { objectToSnakeCase } from '@/helpers/case'
 import AbstractModel from './abstractModel'
 import UserModel from '@/models/user'
 
@@ -9,10 +10,10 @@ export default class SavedFilterModel extends AbstractModel<ISavedFilter> implem
 	title = ''
 	description = ''
 	filters: ISavedFilter['filters'] = {
-		sortBy: ['done', 'id'],
-		orderBy: ['asc', 'desc'],
+		sort_by: ['done', 'id'],
+		order_by: ['asc', 'desc'],
 		filter: 'done = false',
-		filterIncludeNulls: true,
+		filter_include_nulls: true,
 		s: '',
 	}
 
@@ -26,6 +27,10 @@ export default class SavedFilterModel extends AbstractModel<ISavedFilter> implem
 
 		this.owner = new UserModel(this.owner)
 
+		// Filters are in snake_case for the API - this makes it consistent with the way filter params are used with one-off filters.
+		// Should probably be camelCase everywhere, but that's a task for another day.
+		this.filters = objectToSnakeCase(this.filters)
+
 		this.created = new Date(this.created)
 		this.updated = new Date(this.updated)
 	}
diff --git a/frontend/src/services/savedFilter.ts b/frontend/src/services/savedFilter.ts
index bf766f5e6..41a047fef 100644
--- a/frontend/src/services/savedFilter.ts
+++ b/frontend/src/services/savedFilter.ts
@@ -13,7 +13,6 @@ import SavedFilterModel from '@/models/savedFilter'
 import {useBaseStore} from '@/stores/base'
 import {useProjectStore} from '@/stores/projects'
 
-import {objectToSnakeCase, objectToCamelCase} from '@/helpers/case'
 import {success} from '@/message'
 import ProjectModel from '@/models/project'
 
@@ -55,23 +54,6 @@ export default class SavedFilterService extends AbstractService<ISavedFilter> {
 	modelFactory(data) {
 		return new SavedFilterModel(data)
 	}
-
-	processModel(model) {
-		// Make filters from this.filters camelCase and set them to the model property:
-		// That's easier than making the whole filter component configurable since that still needs to provide
-		// the filter values in snake_sćase for url parameters.
-		model.filters = objectToCamelCase(model.filters)
-
-		return model
-	}
-
-	beforeUpdate(model) {
-		return this.processModel(model)
-	}
-
-	beforeCreate(model) {
-		return this.processModel(model)
-	}
 }
 
 export function useSavedFilter(projectId?: MaybeRefOrGetter<IProject['id']>) {
@@ -98,10 +80,7 @@ export function useSavedFilter(projectId?: MaybeRefOrGetter<IProject['id']>) {
 		// We assume the projectId in the route is the pseudoproject
 		const savedFilterId = getSavedFilterIdFromProjectId(watchedProjectId)
 
-		filter.value = new SavedFilterModel({id: savedFilterId})
-		const response = await filterService.get(filter.value)
-		response.filters = objectToSnakeCase(response.filters)
-		filter.value = response
+		filter.value = await filterService.get(new SavedFilterModel({id: savedFilterId}))
 		await validateTitleField()
 	}, {immediate: true})
 
@@ -115,7 +94,6 @@ export function useSavedFilter(projectId?: MaybeRefOrGetter<IProject['id']>) {
 		const response = await filterService.update(filter.value)
 		await projectStore.loadAllProjects()
 		success({message: t('filters.edit.success')})
-		response.filters = objectToSnakeCase(response.filters)
 		filter.value = response
 		await useBaseStore().setCurrentProject(new ProjectModel({
 			id: getProjectId(filter.value),