diff --git a/libc/arch-arm/denver/bionic/__strcat_chk.S b/libc/arch-arm/denver/bionic/__strcat_chk.S
index 9f7db59..d4f651c 100644
--- a/libc/arch-arm/denver/bionic/__strcat_chk.S
+++ b/libc/arch-arm/denver/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/denver/bionic/__strcpy_chk.S b/libc/arch-arm/denver/bionic/__strcpy_chk.S
index 9b7ea91..9295a00 100644
--- a/libc/arch-arm/denver/bionic/__strcpy_chk.S
+++ b/libc/arch-arm/denver/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)
diff --git a/libc/arch-arm/denver/bionic/memcpy.S b/libc/arch-arm/denver/bionic/memcpy.S
index d4e0fb4..743c74b 100644
--- a/libc/arch-arm/denver/bionic/memcpy.S
+++ b/libc/arch-arm/denver/bionic/memcpy.S
@@ -61,6 +61,10 @@
         .syntax unified
         .fpu    neon
 
+        // To avoid warning about deprecated instructions, add an explicit
+        // arch. The code generated is exactly the same.
+        .arch armv7-a
+
 ENTRY(__memcpy_chk)
         cmp     r2, r3
         bls     memcpy