diff --git a/include/asm-x86/sparsemem.h b/include/asm-x86/sparsemem.h
index fa684f353aa7e4cd590d40225037e344308ab4d8..9bd48b0a534ba7b76ffeb439e9276af540a35081 100644
--- a/include/asm-x86/sparsemem.h
+++ b/include/asm-x86/sparsemem.h
@@ -16,7 +16,7 @@
 
 #ifdef CONFIG_X86_32
 # ifdef CONFIG_X86_PAE
-#  define SECTION_SIZE_BITS	30
+#  define SECTION_SIZE_BITS	29
 #  define MAX_PHYSADDR_BITS	36
 #  define MAX_PHYSMEM_BITS	36
 # else