diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 303bd4d..5aa2e9c 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -456,9 +456,9 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma,
 
 #endif /* !(__ASSEMBLY__) */
 
-#define VMALLOC_START           0xfe600000
+#define VMALLOC_START           0xfe600000UL
 /* XXX Alter this when I get around to fixing sun4c - Anton */
-#define VMALLOC_END             0xffc00000
+#define VMALLOC_END             0xffc00000UL
 
 
 /* We provide our own get_unmapped_area to cope with VA holes for userland */