diff --git a/src/mono/browser/runtime/rollup.config.js b/src/mono/browser/runtime/rollup.config.js
index 36cf88de8dd85c..e588af7ff70d6f 100644
--- a/src/mono/browser/runtime/rollup.config.js
+++ b/src/mono/browser/runtime/rollup.config.js
@@ -131,7 +131,7 @@ function sourcemapPathTransform (relativeSourcePath, sourcemapPath) {
             res = `file:///${sourcePath.replace(/\\/g, "/")}`;
         } else {
             relativeSourcePath = relativeSourcePath.substring(12);
-            res = `https://raw.githubusercontent.com/dotnet/runtime/${gitHash}/${relativeSourcePath}`;
+            res = `https://raw.githubusercontent.com/dotnet/dotnet/${gitHash}/src/runtime/${relativeSourcePath}`;
         }
         locationCache[relativeSourcePath] = res;
     }