diff --git a/arch/microblaze/include/asm/asm.h b/arch/microblaze/include/asm/asm.h
index deb23e0..c89e904 100644
--- a/arch/microblaze/include/asm/asm.h
+++ b/arch/microblaze/include/asm/asm.h
@@ -62,7 +62,7 @@
 #define NOP	__asm__ __volatile__ ("nop");
 
 /* use machine status registe USE_MSR_REG */
-#ifdef XILINX_USE_MSR_INSTR
+#if XILINX_USE_MSR_INSTR == 1
 #define MSRSET(val) \
 	__asm__ __volatile__ ("msrset r0," #val );