diff --git a/packages/backend-core/.npmignore b/packages/backend-core/.npmignore
index fb547825eb..30bba85ce8 100644
--- a/packages/backend-core/.npmignore
+++ b/packages/backend-core/.npmignore
@@ -1,4 +1,6 @@
 *
 !dist/**/*
 dist/tsconfig.build.tsbuildinfo
-!package.json
\ No newline at end of file
+!package.json
+!src/**
+!tests/**
\ No newline at end of file