diff --git a/packages/loot-core/src/server/accounts/rules.ts b/packages/loot-core/src/server/accounts/rules.ts
index 71aab527001..846682f166a 100644
--- a/packages/loot-core/src/server/accounts/rules.ts
+++ b/packages/loot-core/src/server/accounts/rules.ts
@@ -12,6 +12,7 @@ import {
 import { sortNumbers, getApproxNumberThreshold } from '../../shared/rules';
 import { recurConfigToRSchedule } from '../../shared/schedules';
 import { fastSetMerge } from '../../shared/util';
+import { RuleConditionEntity } from '../../types/models';
 import { RuleError } from '../errors';
 import { Schedule as RSchedule } from '../util/rschedule';
 
@@ -637,9 +638,11 @@ export class RuleIndexer {
   }
 }
 
-const OP_SCORES = {
+const OP_SCORES: Record<RuleConditionEntity['op'], number> = {
   is: 10,
+  isNot: 10,
   oneOf: 9,
+  notOneOf: 9,
   isapprox: 5,
   isbetween: 5,
   gt: 1,
@@ -647,6 +650,7 @@ const OP_SCORES = {
   lt: 1,
   lte: 1,
   contains: 0,
+  doesNotContain: 0,
 };
 
 function computeScore(rule) {
diff --git a/packages/loot-core/src/types/models/rule.d.ts b/packages/loot-core/src/types/models/rule.d.ts
index fee3e047824..12549e05495 100644
--- a/packages/loot-core/src/types/models/rule.d.ts
+++ b/packages/loot-core/src/types/models/rule.d.ts
@@ -11,7 +11,19 @@ export interface RuleEntity {
 
 interface RuleConditionEntity {
   field: unknown;
-  op: unknown;
+  op:
+    | 'is'
+    | 'isNot'
+    | 'oneOf'
+    | 'notOneOf'
+    | 'isapprox'
+    | 'isbetween'
+    | 'gt'
+    | 'gte'
+    | 'lt'
+    | 'lte'
+    | 'contains'
+    | 'doesNotContain';
   value: unknown;
   options?: unknown;
   conditionsOp?: unknown;
diff --git a/upcoming-release-notes/1987.md b/upcoming-release-notes/1987.md
new file mode 100644
index 00000000000..47fddc10e75
--- /dev/null
+++ b/upcoming-release-notes/1987.md
@@ -0,0 +1,6 @@
+---
+category: Bugfix
+authors: [carkom]
+---
+
+Fix rule ranker in API.