diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c
index 45ffe46..73926fa 100644
--- a/arch/um/os-Linux/user_syms.c
+++ b/arch/um/os-Linux/user_syms.c
@@ -45,7 +45,7 @@
 extern void truncate64(void) __attribute__((weak));
 EXPORT_SYMBOL(truncate64);
 
-#ifdef SUBARCH_i386
+#ifdef CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA
 EXPORT_SYMBOL(vsyscall_ehdr);
 EXPORT_SYMBOL(vsyscall_end);
 #endif