diff --git a/types/index.d.ts b/types/index.d.ts
index 0749dfa..dc93d32 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -1,4 +1,4 @@
-import _ajv, { AnySchema, Options as AjvOptions, ValidateFunction } from 'ajv'
+import _ajv, { AnySchema, Options as AjvOptions, ValidateFunction, Plugin } from 'ajv'
 import AjvJTD, { JTDOptions } from 'ajv/dist/jtd'
 import type { Options, ErrorObject } from 'ajv'
 import { AnyValidateFunction } from 'ajv/dist/core'
@@ -9,10 +9,15 @@ type AjvSerializerGenerator = typeof AjvCompiler
 type AjvJTDCompile = AjvJTD['compileSerializer']
 type AjvCompile = (schema: AnySchema, _meta?: boolean) => AnyValidateFunction
 
-declare function buildCompilerFromPool (externalSchemas: { [key: string]: AnySchema | AnySchema[] }, options?: { mode: 'JTD'; customOptions?: JTDOptions; onCreate?: (ajvInstance: Ajv) => void }): AjvCompile
-declare function buildCompilerFromPool (externalSchemas: { [key: string]: AnySchema | AnySchema[] }, options?: { mode?: never; customOptions?: AjvOptions; onCreate?: (ajvInstance: Ajv) => void }): AjvCompile
+type SharedCompilerOptions = {
+  onCreate?: (ajvInstance: Ajv) => void;
+  plugins?: Plugin<unknown>[];
+}
+
+type BuildAjvJtdCompilerFromPool = (externalSchemas: { [key: string]: AnySchema | AnySchema[] }, options?: SharedCompilerOptions & { mode: 'JTD'; customOptions?: JTDOptions }) => AjvCompile
+type BuildAjvCompilerFromPool = (externalSchemas: { [key: string]: AnySchema | AnySchema[] }, options?: SharedCompilerOptions & { mode?: never; customOptions?: AjvOptions }) => AjvCompile
 
-declare function buildSerializerFromPool (externalSchemas: any, serializerOpts?: { mode?: never; } & JTDOptions): AjvJTDCompile
+type BuildJtdSerializerFromPool = (externalSchemas: any, serializerOpts?: { mode?: never; } & JTDOptions) => AjvJTDCompile
 
 declare function AjvCompiler (opts: { jtdSerializer: true }): AjvCompiler.BuildSerializerFromPool
 declare function AjvCompiler (opts?: { jtdSerializer?: false }): AjvCompiler.BuildCompilerFromPool
@@ -23,9 +28,9 @@ declare namespace AjvCompiler {
   export type { Options, ErrorObject }
   export { Ajv }
 
-  export type BuildSerializerFromPool = typeof buildSerializerFromPool
+  export type BuildSerializerFromPool = BuildJtdSerializerFromPool
 
-  export type BuildCompilerFromPool = typeof buildCompilerFromPool
+  export type BuildCompilerFromPool = BuildAjvCompilerFromPool & BuildAjvJtdCompilerFromPool
 
   export const AjvReference: Symbol
 
diff --git a/types/index.test-d.ts b/types/index.test-d.ts
index 391e7b7..617d10e 100644
--- a/types/index.test-d.ts
+++ b/types/index.test-d.ts
@@ -224,3 +224,22 @@ expectType<Symbol>(AjvReference)
   expectAssignable<ValidatorCompiler>(compiler)
   expectType<AnyValidateFunction<any>>(compiler(endpointSchema))
 }
+
+// Plugins
+{
+  const factory = AjvCompiler()
+  const compiler = factory({}, {
+    plugins: [
+      (ajv) => {
+        expectType<import('ajv').default>(ajv)
+        return ajv
+      },
+      (ajv, options) => {
+        expectType<import('ajv').default>(ajv)
+        expectType<unknown>(options)
+        return ajv
+      }
+    ]
+  })
+  expectAssignable<ValidatorCompiler>(compiler)
+}