diff --git a/exec/loader-aarch64.s b/exec/loader-aarch64.s
index 64f95725eca..376f439417f 100644
--- a/exec/loader-aarch64.s
+++ b/exec/loader-aarch64.s
@@ -167,7 +167,7 @@ skip_environ:
 1:	ldrb	w3, [x2], #1
 	strb	w3, [x1], #1
 	cmp	x2, x9
-	bls	1b
+	blo	1b
 copy_env_and_args:
 	// Copy argc and the environment array.
 	mov	x8, x10
@@ -204,7 +204,7 @@ cleanup:
 1:	ldrb	w3, [x5], #1
 	strb	w3, [x7], #1
 	cmp	x5, x9
-	bls	1b
+	blo	1b
 	// Close file descriptors.
 2:	cmp	x28, #-1		// is secondary fd set?
 	beq	cleanup1		// not set
diff --git a/exec/loader-x86_64.s b/exec/loader-x86_64.s
index 236f8d6670f..9340ac8fc65 100644
--- a/exec/loader-x86_64.s
+++ b/exec/loader-x86_64.s
@@ -162,7 +162,7 @@ skip_environ:
   rep	movsb				# copy file name
 	movq	%r10, %rsi		# file name
 	/* Preserve jump command.  */
-	cmpq	%r8, %r11		# decide copy direction
+1:	cmpq	%r8, %r11		# decide copy direction
 	jb	1f			# copy forward
 	movq	48(%r8), %rax
 	movq	%rax, 48(%r11)		# %r11->at_base