diff --git a/libcxxabi/test/native/x86_64/lpstart-zero.pass.sh.s b/libcxxabi/test/native/x86_64/lpstart-zero.pass.sh.s
index e18134cf88639..7f1da22971223 100644
--- a/libcxxabi/test/native/x86_64/lpstart-zero.pass.sh.s
+++ b/libcxxabi/test/native/x86_64/lpstart-zero.pass.sh.s
@@ -23,6 +23,7 @@
 ## The exception table is modified to use udata4 encoding for LPStart and
 ## sdata4 encoding for call sites.
 
+	.att_syntax
 	.text
 	.globl	main                            # -- Begin function main
 	.p2align	4, 0x90
diff --git a/libunwind/test/remember_state_leak.pass.sh.s b/libunwind/test/remember_state_leak.pass.sh.s
index 63beb7e4701ec..d3335cf82290b 100644
--- a/libunwind/test/remember_state_leak.pass.sh.s
+++ b/libunwind/test/remember_state_leak.pass.sh.s
@@ -38,6 +38,7 @@
 
     SIZEOF_UNWIND_EXCEPTION = 32
 
+    .att_syntax
     .text
 callback:
     xorl    %eax, %eax