diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 228af56ece48..fcd0e691b1ea 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -57,7 +57,7 @@
 #define TASK_SIZE_64		(UL(1) << vabits_user)
 
 #ifdef CONFIG_COMPAT
-#ifdef CONFIG_ARM64_64K_PAGES
+#if defined(CONFIG_ARM64_64K_PAGES) && defined(CONFIG_KUSER_HELPERS)
 /*
  * With CONFIG_ARM64_64K_PAGES enabled, the last page is occupied
  * by the compat vectors page.