diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index 41474fb5eee70d3f89474ae13c59cbaef10b0f37..6a3f9845743ea485c24254696ff4b41646e418d0 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -69,6 +69,8 @@ extern unsigned long end_iomem;
 #define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
 #define PAGE_KERNEL_EXEC	__pgprot(__PAGE_KERNEL_EXEC)
 
+#define io_remap_pfn_range	remap_pfn_range
+
 /*
  * The i386 can't do page protection for execute, and considers that the same
  * are read.