diff --git a/src/system/boot/platform/bios_ia32/mmu.cpp b/src/system/boot/platform/bios_ia32/mmu.cpp
index 744334c36c..e339affe94 100644
--- a/src/system/boot/platform/bios_ia32/mmu.cpp
+++ b/src/system/boot/platform/bios_ia32/mmu.cpp
@@ -372,6 +372,7 @@ init_page_directory(void)
 	// switch to the new pgdir and enable paging
 	asm("movl %0, %%eax;"
 		"movl %%eax, %%cr3;" : : "m" (sPageDirectory) : "eax");
+	x86_write_cr0(x86_read_cr0() | CR0_PAGING);
 }