diff --git a/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.test.ts b/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.test.ts
index 348b5b1ca27b5..3d832cb63003d 100644
--- a/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.test.ts
+++ b/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.test.ts
@@ -75,6 +75,14 @@ describe('genericValidator', () => {
     } as Parameters<ValidationFunc>[0]);
     expect(result).toBeUndefined();
   });
+
+  it('should return undefined if the value contains dashes', () => {
+    const result = genericValidator({
+      value: 'valid-value',
+      path: 'generic',
+    } as Parameters<ValidationFunc>[0]);
+    expect(result).toBeUndefined();
+  });
 });
 
 describe('domainValidator', () => {
diff --git a/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.ts b/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.ts
index b858bb1251bb2..ce196d8088044 100644
--- a/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.ts
+++ b/x-pack/platform/plugins/shared/cases/public/components/observables/fields_config.ts
@@ -28,7 +28,7 @@ export const normalizeValueType = (value: string): keyof typeof fieldsConfig.val
 };
 
 const DOMAIN_REGEX = /^(?!-)[A-Za-z0-9-]{1,63}(?<!-)\.[A-Za-z]{2,}$/;
-const GENERIC_REGEX = /^[a-zA-Z0-9._:/\\]+$/;
+const GENERIC_REGEX = /^[a-zA-Z0-9._:/\\-]+$/;
 
 const notStringError = (path: string) => ({
   code: 'ERR_NOT_STRING',