diff --git a/.npmignore b/.npmignore
index 1dcb54d1b..4747eedf0 100644
--- a/.npmignore
+++ b/.npmignore
@@ -41,7 +41,9 @@ node_modules
 *.ts
 !*.d.ts
 *.js.map
+!index.js.map
 !/bundles/*.js.map
+!/src/*.js.map
 !*.metadata.json
 tsconfig.json
 tsconfig-build.json