--- a/src/runtime/monitor.c
+++ b/src/runtime/monitor.c
@@ -176,17 +176,17 @@
 {
     printf("CSP\t=\t0x%08lX\n", (unsigned long)current_control_stack_pointer);
     printf("FP\t=\t0x%08lX\n", (unsigned long)current_control_frame_pointer);
-#if !defined(LISP_FEATURE_X86)
+#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
     printf("BSP\t=\t0x%08X\n", (unsigned long)current_binding_stack_pointer);
 #endif
 #if 0
-#ifdef LISP_FEATURE_X86
+#if (defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
     printf("BSP\t=\t0x%08lx\n",
 	   (unsigned long)SymbolValue(BINDING_STACK_POINTER));
 #endif
 
     printf("DYNAMIC\t=\t0x%08lx\n", (unsigned long)DYNAMIC_SPACE_START);
-#if defined(LISP_FEATURE_X86)
+#if (defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
     printf("ALLOC\t=\t0x%08lx\n",
 	   (unsigned long)SymbolValue(ALLOCATION_POINTER));
 #else
@@ -393,7 +393,7 @@
         printf("There are no active catchers!\n");
     else {
         while (catch != NULL) {
-#ifndef LISP_FEATURE_X86
+#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
             printf("0x%08lX:\n\tuwp: 0x%08lX\n\tfp: 0x%08lX\n\tcode: 0x%08lx\n\tentry: 0x%08lx\n\ttag: ",
 		   (unsigned long)catch, (unsigned long)(catch->current_uwp),
 		   (unsigned long)(catch->current_cont),