diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 49e047a5f540..84fdbb5d7fb3 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -114,7 +114,7 @@
 	.endm
 
 	.macro	isb, args
-	mcr	p15, 0, r0, c7, r5, 4
+	mcr	p15, 0, r0, c7, c5, 4
 	.endm
 #endif