diff --git a/newlib/libc/machine/arm/strlen-thumb2-Os.S b/newlib/libc/machine/arm/strlen-thumb2-Os.S
index 961f41a0a..7a8b3d93b 100644
--- a/newlib/libc/machine/arm/strlen-thumb2-Os.S
+++ b/newlib/libc/machine/arm/strlen-thumb2-Os.S
@@ -45,7 +45,7 @@
 
 def_fn	strlen p2align=1
 	mov     r3, r0
-1:	ldrb.w  r2, [r3], #1
+1:	ldrb  r2, [r3], #1
 	cmp     r2, #0
 	bne	1b
 	subs    r0, r3, r0