diff --git a/include/asm-ppc/ibm4xx.h b/include/asm-ppc/ibm4xx.h
index cf62b69cb69a12b42e18dcaace44cb82287f28d3..499c14691c71dfe7ca8a9c043def011438d099af 100644
--- a/include/asm-ppc/ibm4xx.h
+++ b/include/asm-ppc/ibm4xx.h
@@ -86,7 +86,7 @@ void ppc4xx_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #define PCI_DRAM_OFFSET	0
 #endif
 
-#elif CONFIG_44x
+#elif defined(CONFIG_44x)
 
 #if defined(CONFIG_BAMBOO)
 #include <platforms/4xx/bamboo.h>