diff --git a/llvm/test/Object/wasm-invalid-file.yaml b/llvm/test/Object/wasm-invalid-file.yaml
index 3c16291c06df..309fbd46e6e6 100644
--- a/llvm/test/Object/wasm-invalid-file.yaml
+++ b/llvm/test/Object/wasm-invalid-file.yaml
@@ -1,5 +1,5 @@
 # RUN: yaml2obj %s > %t.wasm
-# RUN: echo -en "\x01" >> %t.wasm
+# RUN: echo -e -n "\x01" >> %t.wasm
 # Append a new section but truncate the encoding of the section size
 # RUN: not llvm-objdump -h %t.wasm 2>&1 | FileCheck %s -check-prefix=CHECK-LEB-DECODE