diff --git a/arch/arm/mach-lpc32xx/include/mach/vmalloc.h b/arch/arm/mach-lpc32xx/include/mach/vmalloc.h
index d1d936c7236de7a729255b9b058824b24f28af9f..720fa43a60bfd4725791cc6254110f36c09b6a03 100644
--- a/arch/arm/mach-lpc32xx/include/mach/vmalloc.h
+++ b/arch/arm/mach-lpc32xx/include/mach/vmalloc.h
@@ -19,6 +19,6 @@
 #ifndef __ASM_ARCH_VMALLOC_H
 #define __ASM_ARCH_VMALLOC_H
 
-#define VMALLOC_END	0xF0000000
+#define VMALLOC_END	0xF0000000UL
 
 #endif