diff --git a/gc.c b/gc.c
index dec0188f..9264a54b 100644
--- a/gc.c
+++ b/gc.c
@@ -559,7 +559,7 @@ size_t gc_sweep(gc_heap *h, size_t *sum_freed_ptr)
 
       if ((char *)r == (char *)p) { // this is a free block, skip it
         p = (object) (((char *)p) + r->size);
-#if GC_DEBUG_TRACE
+#if GC_DEBUG_VERBOSE
         fprintf(stderr, "skip free block %p size = %zu\n", p, r->size);
 #endif
         continue;
diff --git a/runtime.c b/runtime.c
index 1e031e44..f4dd9d3b 100644
--- a/runtime.c
+++ b/runtime.c
@@ -2227,7 +2227,7 @@ void gc_mark_globals()
      cvar_type *c = (cvar_type *)car(l);
      object glo =  *(c->pvar);
      if (!nullp(glo)) {
-#if GC_DEBUG_TRACE
+#if GC_DEBUG_VERBOSE
        fprintf(stderr, "global pvar %p\n", glo);
 #endif
        gc_mark_black(glo); // Mark actual object the global points to