diff --git a/internal/js_library/js_library.bzl b/internal/js_library/js_library.bzl
index 40134ad3f6..7279f3a4c0 100644
--- a/internal/js_library/js_library.bzl
+++ b/internal/js_library/js_library.bzl
@@ -110,14 +110,16 @@ def _link_path(ctx, all_files):
         link_path += "/" + ctx.attr.strip_prefix
 
         # Check that strip_prefix contains at least one src path
-        # check_prefix = "/".join([p for p in [ctx.label.package, ctx.attr.strip_prefix] if p])
-        # prefix_contains_src = False
-        # for file in all_files:
-        #     if file.short_path.startswith(check_prefix):
-        #         prefix_contains_src = True
-        #         break
-        # if not prefix_contains_src:
-        #     fail("js_library %s strip_prefix path does not contain any of the provided sources" % ctx.label)
+        check_prefix = "/".join([p for p in [ctx.label.workspace_name, ctx.label.package, ctx.attr.strip_prefix] if p])
+
+        prefix_contains_src = False
+        for file in all_files:
+            filepath = file.short_path[3:] if file.short_path.startswith("../") else file.short_path
+            if filepath.startswith(check_prefix):
+                prefix_contains_src = True
+                break
+        if not prefix_contains_src:
+            fail(" js_library %s strip_prefix path does not contain any of the provided sources" % ctx.label)
 
     return link_path