diff --git a/libc/arch-arm/krait/bionic/__strcat_chk.S b/libc/arch-arm/krait/bionic/__strcat_chk.S
index a46ff98..32fa82d 100644
--- a/libc/arch-arm/krait/bionic/__strcat_chk.S
+++ b/libc/arch-arm/krait/bionic/__strcat_chk.S
@@ -33,6 +33,10 @@
     .thumb
     .thumb_func
 
+    // To avoid warning about deprecated instructions, add an explicit
+    // arch. The code generated is exactly the same.
+    .arch armv7-a
+
 // Get the length of src string, then get the source of the dst string.
 // Check that the two lengths together don't exceed the threshold, then
 // do a memcpy of the data.
diff --git a/libc/arch-arm/krait/bionic/__strcpy_chk.S b/libc/arch-arm/krait/bionic/__strcpy_chk.S
index 9c2f66a..ca4cf7f 100644
--- a/libc/arch-arm/krait/bionic/__strcpy_chk.S
+++ b/libc/arch-arm/krait/bionic/__strcpy_chk.S
@@ -33,6 +33,10 @@
     .thumb
     .thumb_func
 
+    // To avoid warning about deprecated instructions, add an explicit
+    // arch. The code generated is exactly the same.
+    .arch armv7-a
+
 // Get the length of the source string first, then do a memcpy of the data
 // instead of a strcpy.
 ENTRY(__strcpy_chk)