diff --git a/test/cases/llvm/nested_blocks.zig b/test/cases/llvm/nested_blocks.zig
index 47b6c5069bffb04c825bd70c695eaca0d7854269..895f7e658b61fa5c381cf6902c150fe14ee5ea75 100644
--- a/test/cases/llvm/nested_blocks.zig
+++ b/test/cases/llvm/nested_blocks.zig
@@ -19,6 +19,6 @@ pub fn main() void {
 }
 
 // run
-// backend=stage2, llvm
+// backend=stage2,llvm
 // target=x86_64-linux,x86_64-macos
 //