diff --git a/shell/platform/linux/BUILD.gn b/shell/platform/linux/BUILD.gn
index e512996041a61e653039ba7982f44c7402b650b3..ed185e45415325d5a0cdcdd95fb2824dcff27896 100644
--- a/shell/platform/linux/BUILD.gn
+++ b/shell/platform/linux/BUILD.gn
@@ -3,6 +3,8 @@
 # found in the LICENSE file.
 
 group("linux") {
+  testonly = true
+
   deps = [
     "$flutter_root/shell/testing",
   ]