diff --git a/src/checker/runtime.ts b/src/checker/runtime.ts
index b84a69a..d918cd3 100644
--- a/src/checker/runtime.ts
+++ b/src/checker/runtime.ts
@@ -263,8 +263,9 @@ function createChecker(receive: (cb: (msg: Req) => void) => void, send: (msg: Re
         });
 
         const program = service.getProgram();
-
-        if (loaderConfig.customTranformersPath !== undefined) {
+        if (loaderConfig.getCustomTransformers !== undefined) {
+            host.getCustomTransformers = loaderConfig.getCustomTransformers(program);
+        } else if (loaderConfig.customTranformersPath !== undefined) {
             host.getCustomTransformers = require(loaderConfig.customTranformersPath)(program);
         }
 
diff --git a/src/interfaces.ts b/src/interfaces.ts
index e781045..b782d9d 100644
--- a/src/interfaces.ts
+++ b/src/interfaces.ts
@@ -25,6 +25,7 @@ export interface LoaderConfig {
     entryFileIsJs?: boolean;
     debug?: boolean;
     customTranformersPath?: string;
+    getCustomTransformers?: (program: ts.Program) => ts.CustomTransformers
 }
 
 export interface OutputFile {