diff --git a/packages/runtime/src/enhancements/policy/policy-utils.ts b/packages/runtime/src/enhancements/policy/policy-utils.ts
index 02bfa2068..0b263d616 100644
--- a/packages/runtime/src/enhancements/policy/policy-utils.ts
+++ b/packages/runtime/src/enhancements/policy/policy-utils.ts
@@ -651,7 +651,7 @@ export class PolicyUtil extends QueryUtils {
             throw this.deniedByPolicy(
                 model,
                 operation,
-                `entity ${JSON.stringify(uniqueFilter)} failed policy check`,
+                `entity ${formatObject(uniqueFilter, false)} failed policy check`,
                 CrudFailureReason.ACCESS_POLICY_VIOLATION
             );
         }
@@ -664,7 +664,7 @@ export class PolicyUtil extends QueryUtils {
                 throw this.deniedByPolicy(
                     model,
                     'update',
-                    `entity ${JSON.stringify(uniqueFilter)} failed update policy check for field "${
+                    `entity ${formatObject(uniqueFilter, false)} failed update policy check for field "${
                         fieldUpdateGuard.rejectedByField
                     }"`,
                     CrudFailureReason.ACCESS_POLICY_VIOLATION
@@ -712,7 +712,7 @@ export class PolicyUtil extends QueryUtils {
             throw this.deniedByPolicy(
                 model,
                 operation,
-                `entity ${JSON.stringify(uniqueFilter)} failed policy check`,
+                `entity ${formatObject(uniqueFilter, false)} failed policy check`,
                 CrudFailureReason.ACCESS_POLICY_VIOLATION
             );
         }
diff --git a/packages/runtime/src/enhancements/utils.ts b/packages/runtime/src/enhancements/utils.ts
index 0e82e65be..92c8b7726 100644
--- a/packages/runtime/src/enhancements/utils.ts
+++ b/packages/runtime/src/enhancements/utils.ts
@@ -1,11 +1,13 @@
+import safeJsonStringify from 'safe-json-stringify';
 import { FieldInfo, ModelMeta, resolveField } from '..';
 import type { DbClientContract } from '../types';
 
 /**
  * Formats an object for pretty printing.
  */
-export function formatObject(value: unknown) {
-    return JSON.stringify(value, undefined, 2);
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export function formatObject(value: any, multiLine = true) {
+    return multiLine ? safeJsonStringify(value, undefined, 2) : safeJsonStringify(value);
 }
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any