diff --git a/lib/2019.ts b/lib/2019.ts
index 0311c4d09..45a3fa535 100644
--- a/lib/2019.ts
+++ b/lib/2019.ts
@@ -76,3 +76,5 @@ export {DefinedError} from "./vocabularies/errors"
 export {JSONType} from "./compile/rules"
 export {JSONSchemaType} from "./types/json-schema"
 export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"
diff --git a/lib/2020.ts b/lib/2020.ts
index beff5c7bd..afbdda200 100644
--- a/lib/2020.ts
+++ b/lib/2020.ts
@@ -70,3 +70,5 @@ export {DefinedError} from "./vocabularies/errors"
 export {JSONType} from "./compile/rules"
 export {JSONSchemaType} from "./types/json-schema"
 export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"
diff --git a/lib/ajv.ts b/lib/ajv.ts
index bbfa5a4e5..7f87c8aea 100644
--- a/lib/ajv.ts
+++ b/lib/ajv.ts
@@ -65,3 +65,5 @@ export {DefinedError} from "./vocabularies/errors"
 export {JSONType} from "./compile/rules"
 export {JSONSchemaType} from "./types/json-schema"
 export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"
diff --git a/lib/jtd.ts b/lib/jtd.ts
index b53749ba4..96eb7b9dc 100644
--- a/lib/jtd.ts
+++ b/lib/jtd.ts
@@ -127,3 +127,5 @@ export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./com
 
 export {JTDSchemaType, SomeJTDSchemaType, JTDDataType}
 export {JTDOptions}
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"