diff --git a/lld/test/ELF/text-section-prefix.s b/lld/test/ELF/text-section-prefix.s
index 578a504e7e5e..b9e9a6022259 100644
--- a/lld/test/ELF/text-section-prefix.s
+++ b/lld/test/ELF/text-section-prefix.s
@@ -1,4 +1,4 @@
-# RUN: llvm-mc -filetype=obj %s -o %t
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: ld.lld -z keep-text-section-prefix %t -o %t2
 # RUN: llvm-readelf -l %t2 | FileCheck %s
 # RUN: ld.lld %t -o %t3