diff --git a/src/tsconfig.esm.json b/src/tsconfig.esm.json
index 54e3e2cf..03783034 100644
--- a/src/tsconfig.esm.json
+++ b/src/tsconfig.esm.json
@@ -2,7 +2,6 @@
   "compilerOptions": {
     "module": "esnext",
     "moduleResolution": "node",
-    "declaration": true,
     "outDir": "../release/esm",
     "target": "es5",
     "lib": [