diff --git a/sysdeps/mach/hurd/x86_64/vm_param.h b/sysdeps/mach/hurd/x86_64/vm_param.h
index 460445f49e..a6e63a3a1a 100644
--- a/sysdeps/mach/hurd/x86_64/vm_param.h
+++ b/sysdeps/mach/hurd/x86_64/vm_param.h
@@ -15,7 +15,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#ifndef _X86_86_VM_PARAM_H
+#ifndef _X86_64_VM_PARAM_H
 #define _X86_64_VM_PARAM_H
 
 /* Arbitrary start of the brk. This is after usual binary and library mappings.  */