diff --git a/arch/mips/include/asm/vdso/vdso.h b/arch/mips/include/asm/vdso/vdso.h
index 526695bc65ee..737ddfc3411c 100644
--- a/arch/mips/include/asm/vdso/vdso.h
+++ b/arch/mips/include/asm/vdso/vdso.h
@@ -6,16 +6,6 @@
 
 #include <asm/sgidefs.h>
 
-#if _MIPS_SIM != _MIPS_SIM_ABI64 && defined(CONFIG_64BIT)
-
-/* Building 32-bit VDSO for the 64-bit kernel. Fake a 32-bit Kconfig. */
-#undef CONFIG_64BIT
-#define CONFIG_32BIT 1
-#ifndef __ASSEMBLY__
-#include <asm-generic/atomic64.h>
-#endif
-#endif
-
 #ifndef __ASSEMBLY__
 
 #include <asm/asm.h>
diff --git a/arch/mips/vdso/config-n32-o32-env.c b/arch/mips/vdso/config-n32-o32-env.c
index da4994b2b3e5..7f8d957abd4a 100644
--- a/arch/mips/vdso/config-n32-o32-env.c
+++ b/arch/mips/vdso/config-n32-o32-env.c
@@ -12,6 +12,7 @@
 
 #define CONFIG_32BIT 1
 #define CONFIG_GENERIC_ATOMIC64 1
+#define BUILD_VDSO32_64
 
 #endif